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409ccfc3a1954005a33f02bab6ade39c7412a70cde50f3193924cd10b443fa07 | 2026-01-21T00:00:00-05:00 | Simultaneous Inference in Multiple Matrix-Variate Graphs for High-Dimensional Neural Recordings | arXiv:2410.15530v2 Announce Type: replace-cross Abstract: We study simultaneous inference for multiple matrix-variate Gaussian graphical models in high-dimensional settings. Such models arise when spatiotemporal data are collected across multiple sample groups or experimental sessions, where each group is characterized... | https://arxiv.org/abs/2410.15530 | Academic Papers | svg |
2da9ae190e2e38d0859a9cd712707a6cfac7fad1c133b85ad6d7b87e590101b0 | 2026-01-21T00:00:00-05:00 | Quantum particle in the wrong box (or: the perils of finite-dimensional approximations) | arXiv:2412.15889v3 Announce Type: replace-cross Abstract: When numerically simulating the unitary time evolution of an infinite-dimensional quantum system, one is usually led to treat the Hamiltonian $H$ as an "infinite-dimensional matrix" by expressing it in some orthonormal basis of the Hilbert space, and then trunca... | https://arxiv.org/abs/2412.15889 | Academic Papers | svg |
e726fdcebcae2384404c874e0491429f2e8057e0577afad6e5c770f8a3ddebe3 | 2026-01-21T00:00:00-05:00 | Optimization Insights into Deep Diagonal Linear Networks | arXiv:2412.16765v3 Announce Type: replace-cross Abstract: Gradient-based methods successfully train highly overparameterized models in practice, even though the associated optimization problems are markedly nonconvex. Understanding the mechanisms that make such methods effective has become a central problem in modern o... | https://arxiv.org/abs/2412.16765 | Academic Papers | svg |
16551162d69c0e899d726d9b9f78473307d76056f22913df86c1d33526723d13 | 2026-01-21T00:00:00-05:00 | A non-semisimple non-invertible symmetry | arXiv:2412.19635v2 Announce Type: replace-cross Abstract: We investigate the action of a non-invertible symmetry on spins chains whose topological lines are labelled by representations of the four-dimensional Taft algebra. The main peculiarity of this symmetry is the existence of junctions between distinct indecomposab... | https://arxiv.org/abs/2412.19635 | Academic Papers | svg |
d11e20ebedaef198ad55f1d57d10839a9a20d9b0c8d127448ec6e92579a95df1 | 2026-01-21T00:00:00-05:00 | Prior distributions for structured semi-orthogonal matrices | arXiv:2501.10263v2 Announce Type: replace-cross Abstract: Statistical models for multivariate data often include a semi-orthogonal matrix parameter. In many applications, there is reason to expect that the semi-orthogonal matrix parameter satisfies a structural assumption such as sparsity or smoothness. From a Bayesian... | https://arxiv.org/abs/2501.10263 | Academic Papers | svg |
c2ed8055d3c1c6d450eb6018b0c25a2adb0230def751cc3c47da7dbdc5735e29 | 2026-01-21T00:00:00-05:00 | A Novel Approach to the Initial Value Problem with a complete validated algorithm | arXiv:2502.00503v4 Announce Type: replace-cross Abstract: We consider the first order autonomous differential equation (ODE) ${\bf x}'={\bf f}({\bf x})$ where ${\bf f}: {\mathbb R}^n\to{\mathbb R}^n$ is locally Lipschitz. For ${\bf x}_0\in{\mathbb R}^n$ and $h>0$, the initial value problem (IVP) for $({\bf f},{\bf x}_0... | https://arxiv.org/abs/2502.00503 | Academic Papers | svg |
19c55aaa107c47532825487f98b80bd4fc5050e202e3f87b687d10dde7d87357 | 2026-01-21T00:00:00-05:00 | On dimensions of (2+1)D abelian bosonic topological systems on non-orientable manifolds | arXiv:2502.13532v2 Announce Type: replace-cross Abstract: We give a framework to describe abelian bosonic topological systems with parity symmetry on a torus in terms of the projective representation of $GL(2,\mathbb{Z})$. However, this information alone does not guarantee that we can assign Hilbert spaces to non-orien... | https://arxiv.org/abs/2502.13532 | Academic Papers | svg |
fd753b6b28d2510f3079414cc43a19310213cf4320fafa96844e9de6a7e54eb6 | 2026-01-21T00:00:00-05:00 | Quasi Zigzag Persistence: A Topological Framework for Analyzing Time-Varying Data | arXiv:2502.16049v3 Announce Type: replace-cross Abstract: In this paper, we propose Quasi Zigzag Persistent Homology (QZPH) as a framework for analyzing time-varying data by integrating multiparameter persistence and zigzag persistence. To this end, we introduce a stable topological invariant that captures both static ... | https://arxiv.org/abs/2502.16049 | Academic Papers | svg |
646bcfa31b978a908ff4f635c90cb1f6d3cc77ce218c146356cf4ac48e896ffe | 2026-01-21T00:00:00-05:00 | Covert Entanglement Generation and Secrecy | arXiv:2503.21002v4 Announce Type: replace-cross Abstract: We determine the covert capacity for entanglement generation over a noisy quantum channel. While secrecy guarantees that the transmitted information remains inaccessible to an adversary, covert communication ensures that the transmission itself remains undetecta... | https://arxiv.org/abs/2503.21002 | Academic Papers | svg |
21cc1b68a5e515cc1b6e3846852395e0eb53875b8b1e4fc010eb8098136154fc | 2026-01-21T00:00:00-05:00 | Adaptive Entanglement Distillation | arXiv:2504.11670v2 Announce Type: replace-cross Abstract: Quantum network applications impose a variety of requirements on entanglement resources in terms of rate, fidelity, latency, and more. The repeaters in the quantum network must combine good methods for entanglement generation, effective entanglement distillation... | https://arxiv.org/abs/2504.11670 | Academic Papers | svg |
229082b15b041e72065f20a8e7c82594ee90686ba26a4d9f19548e0c5d525833 | 2026-01-21T00:00:00-05:00 | The frequency $K_i$s for symmetrical traveling salesman problem | arXiv:2504.19608v4 Announce Type: replace-cross Abstract: The frequency $K_i$s ($i\in[4,n]$) are studied for symmetric traveling salesman problem ($TSP$) to illustrate the structure properties of the edges in optimal Hamiltonian cycle ($OHC$). A frequency $K_i$ is computed with the set of ${{i}\choose{2}}$ optimal $i$-... | https://arxiv.org/abs/2504.19608 | Academic Papers | svg |
e69139f81dd81a9d83dc1a4deb780b9b2cbcbb954723453dd53144da9848050f | 2026-01-21T00:00:00-05:00 | ADMM-Based Training for Spiking Neural Networks | arXiv:2505.05527v2 Announce Type: replace-cross Abstract: In recent years, spiking neural networks (SNNs) have gained momentum due to their high potential in time-series processing combined with minimal energy consumption. However, they still lack a dedicated and efficient training algorithm. The popular backpropagatio... | https://arxiv.org/abs/2505.05527 | Academic Papers | svg |
90ec1b2c4d9efaf0fbb64a98a2d43cb7df867a92087500b8b613f6305c43c7e2 | 2026-01-21T00:00:00-05:00 | Algebraic Topology Principles behind Topological Quantum Error Correction | arXiv:2505.06082v2 Announce Type: replace-cross Abstract: Quantum error correction (QEC) is crucial for realizing scalable quantum technologies, and topological quantum error correction (TQEC) has emerged as the most experimentally advanced paradigm of QEC. Existing homological and topological code constructions, howev... | https://arxiv.org/abs/2505.06082 | Academic Papers | svg |
685b1ed2babd09b549d3c2a5b44c11c02eabc75aab6dc201dedb459ab347ed5f | 2026-01-21T00:00:00-05:00 | Fermion Doubling in Quantum Cellular Automata | arXiv:2505.07900v3 Announce Type: replace-cross Abstract: A Quantum Cellular Automaton (QCA) is essentially an operator driving the evolution of particles on a lattice, through local unitaries. Because $\Delta_t=\Delta_x = \epsilon$, QCAs constitute a privileged framework to cast the digital quantum simulation of relat... | https://arxiv.org/abs/2505.07900 | Academic Papers | svg |
253d30e5dd1567764592a25a93839c847b507211ec39f5ffcebad68cf3bbc327 | 2026-01-21T00:00:00-05:00 | RDA-PSO: A computational method to quantify the diffusive dispersal of insects | arXiv:2505.08848v2 Announce Type: replace-cross Abstract: This article introduces a computational method, called "Recapture of Diffusive Agents & Particle Swarm Optimization" (RDA-PSO), designed to estimate the dispersal parameter of diffusive insects in mark-release-recapture (MRR) field experiments. In addition to de... | https://arxiv.org/abs/2505.08848 | Academic Papers | svg |
75d5355622f6c3ec0d2606bf323dac78366bcc9efe936296b1e4f0f85d0af6af | 2026-01-21T00:00:00-05:00 | Statistical properties of non-linear observables of fractal Gaussian fields with a focus on spatial-averaging observables and on composite operators | arXiv:2505.16356v2 Announce Type: replace-cross Abstract: The statistical properties of non-linear observables of the fractal Gaussian field $\phi(\vec x)$ of negative Hurst exponent $H2$ is analyzed via the Wiener-Ito chaos-expansion for functionals of the white noise: the multiple stochastic Ito integrals are useful ... | https://arxiv.org/abs/2505.16356 | Academic Papers | svg |
ee5b70069d4e8166a3076a289d66db94c6faeea7ed3bb22c359013ae0d4c698d | 2026-01-21T00:00:00-05:00 | Flagged Extensions and Numerical Simulations for Quantum Channel Capacity: Bridging Theory and Computation | arXiv:2506.03429v2 Announce Type: replace-cross Abstract: I will investigate the capacities of noisy quantum channels through a combined analytical and numerical approach. First, I introduce novel flagged extension techniques that embed a channel into a higher-dimensional space, enabling single-letter upper bounds on q... | https://arxiv.org/abs/2506.03429 | Academic Papers | svg |
34753798c43382583aa53da1a8a821d2a9483dc3b528792bd0615da0d3560410 | 2026-01-21T00:00:00-05:00 | Dynamic Hybrid Modeling: Incremental Identification and Model Predictive Control | arXiv:2506.18344v2 Announce Type: replace-cross Abstract: Mathematical models are crucial for optimizing and controlling chemical processes, yet they often face significant limitations in terms of computational time, algorithm complexity, and development costs. Hybrid models, which combine mechanistic models with data-... | https://arxiv.org/abs/2506.18344 | Academic Papers | svg |
920c828335057599b1e0e2d4161d06af868bb926742ae31d79f0651133cf56d5 | 2026-01-21T00:00:00-05:00 | Efficient Parametric SVD of Koopman Operator for Stochastic Dynamical Systems | arXiv:2507.07222v3 Announce Type: replace-cross Abstract: The Koopman operator provides a principled framework for analyzing nonlinear dynamical systems through linear operator theory. Recent advances in dynamic mode decomposition (DMD) have shown that trajectory data can be used to identify dominant modes of a system ... | https://arxiv.org/abs/2507.07222 | Academic Papers | svg |
dcb0d85b7b7166d5a24662bb3d4d34ff6d3ea66b316a89ac0f48f691091c0d82 | 2026-01-21T00:00:00-05:00 | Exact CHY Integrand Construction Using Combinatorial Neural Networks and Discrete Optimization | arXiv:2508.02248v2 Announce Type: replace-cross Abstract: Constructing a rational CHY integrand that realizes prescribed physical pole constraints is a discrete inverse problem whose combinatorial complexity grows with multiplicity. We encode the pole hierarchy through generalized pole degrees $K(A)$ (channels $s_A$), ... | https://arxiv.org/abs/2508.02248 | Academic Papers | svg |
205236d74ce294fa93845bc926d4b05d509dfa678ea4583f95a66acd05c76745 | 2026-01-21T00:00:00-05:00 | Matrix-Free Two-to-Infinity and One-to-Two Norms Estimation | arXiv:2508.04444v2 Announce Type: replace-cross Abstract: In this paper, we propose new randomized algorithms for estimating the two-to-infinity and one-to-two norms in a matrix-free setting, using only matrix-vector multiplications. Our methods are based on appropriate modifications of Hutchinson's diagonal estimator ... | https://arxiv.org/abs/2508.04444 | Academic Papers | svg |
fc90dedb4fbe47e57823d0bb31b7549eaf6d74477b83ba9c2d27de4cde1df580 | 2026-01-21T00:00:00-05:00 | Generalization of anomaly formula for time reversal symmetry in (2+1)D abelian bosonic TQFTs | arXiv:2508.04990v3 Announce Type: replace-cross Abstract: We study time-reversal symmetry in $(2+1)$D abelian bosonic topological phases. Time-reversal anomalies in such systems are classified by $\mathbb{Z}_2 \times \mathbb{Z}_2$ symmetry-protected topological (SPT) phases in $(3+1)$D, and can be diagnosed via partiti... | https://arxiv.org/abs/2508.04990 | Academic Papers | svg |
006a47f0eeba39cbd759b3b39594a5e22de6fccde2839f22abaa435b4d7e2d43 | 2026-01-21T00:00:00-05:00 | Commuting integrable maps from a deformed D$_4$ cluster algebra | arXiv:2508.05270v2 Announce Type: replace-cross Abstract: In this paper we revisit an integrable map of the plane which we obtained recently as a two-parameter family of deformed mutations in the cluster algebra of type D$_4$. The rational first integral for this map defines an invariant foliation of the plane by level... | https://arxiv.org/abs/2508.05270 | Academic Papers | svg |
caba623c38071ed8a318a74a724cf0fecbd78d840eade97dca12f8ac43e75261 | 2026-01-21T00:00:00-05:00 | Bias correction for Chatterjee's graph-based correlation coefficient | arXiv:2508.09040v2 Announce Type: replace-cross Abstract: Azadkia and Chatterjee (2021) recently introduced a simple nearest neighbor (NN) graph-based correlation coefficient that consistently detects both independence and functional dependence. Specifically, it approximates a measure of dependence that equals 0 if and... | https://arxiv.org/abs/2508.09040 | Academic Papers | svg |
b030d63b1e0ee7708d4648d5d1baefc0305b55d64f1f79f4860add929e7e38ca | 2026-01-21T00:00:00-05:00 | A predictive modular approach to constraint satisfaction under uncertainty -- with application to glycosylation in continuous monoclonal antibody biosimilar production | arXiv:2508.16803v4 Announce Type: replace-cross Abstract: The paper proposes a modular-based approach to constraint handling in process optimization and control. This is partly motivated by the recent interest in learning-based methods, e.g., within bioproduction, for which constraint handling under uncertainty is a ch... | https://arxiv.org/abs/2508.16803 | Academic Papers | svg |
d937fdfdc574567cc6c9aeca95a976b398fc2c041c8ef61335448960144a090d | 2026-01-21T00:00:00-05:00 | Quantum spatial best-arm identification via quantum walks | arXiv:2509.05890v2 Announce Type: replace-cross Abstract: Quantum reinforcement learning has emerged as a framework combining quantum computation with sequential decision-making, and applications to the multi-armed bandit (MAB) problem have been reported. The graph bandit problem extends the MAB setting by introducing ... | https://arxiv.org/abs/2509.05890 | Academic Papers | svg |
0e633c8fd6f7c7e9ee3ffe3d804a6d23b975097ad3dadce8b957c6023241110a | 2026-01-21T00:00:00-05:00 | Vanishing of the $H^3$ obstruction for time-reversal symmetry in (2+1)D abelian bosonic TQFTs | arXiv:2509.07368v2 Announce Type: replace-cross Abstract: In $(2+1)$-dimensional topological quantum field theories (TQFTs), the action of a global symmetry group on the anyon system is one of the central topics of research. Owing to the subtle categorical nature of anyons, a global symmetry acting on them is generally... | https://arxiv.org/abs/2509.07368 | Academic Papers | svg |
42adfa7d776bbaf271676f98d84032aa456c53d03cc2fb214010f8d19443dae4 | 2026-01-21T00:00:00-05:00 | Robustness of quantum algorithms: Worst-case fidelity bounds and implications for design | arXiv:2509.08481v2 Announce Type: replace-cross Abstract: Errors occurring on noisy hardware pose a key challenge to reliable quantum computing. Existing techniques such as error correction, mitigation, or suppression typically separate the error handling from the algorithm analysis and design. In this paper, we develo... | https://arxiv.org/abs/2509.08481 | Academic Papers | svg |
e1d89cefed5afe0b990032c451eced4dac875f66dd7c969450ba11770755d5d6 | 2026-01-21T00:00:00-05:00 | Learning to Solve Optimization Problems Constrained with Partial Differential Equations | arXiv:2509.24573v2 Announce Type: replace-cross Abstract: Partial differential equation (PDE)-constrained optimization arises in many scientific and engineering domains, such as energy systems, fluid dynamics and material design. In these problems, the decision variables (e.g., control inputs or design parameters) are ... | https://arxiv.org/abs/2509.24573 | Academic Papers | svg |
1aa12b37fc2db35f03f4a0f91eabb37ddf394bb4b4ac21b42c0f65738025eb08 | 2026-01-21T00:00:00-05:00 | Effective Free Energy Landscapes and Black Hole Thermodynamic Phase Transitions | arXiv:2509.25039v2 Announce Type: replace-cross Abstract: A recent interesting development in the dynamics of black hole phase transitions has been the so-called Gibbs free energy landscape approach. In this formalism, it is assumed that there exists a canonical ensemble of a series of black hole spacetimes with arbitr... | https://arxiv.org/abs/2509.25039 | Academic Papers | svg |
a78e916d2506a68a6ea058827f0c0b5539f20d7251902c2a104e471e538e7b9e | 2026-01-21T00:00:00-05:00 | Weyl symmetry without the traceless condition | arXiv:2510.09957v3 Announce Type: replace-cross Abstract: We show that the requirement that the trace of the stress-energy tensor of matter must vanish if invariance under Weyl transformations is a symmetry of a given gravitational theory is not universal. This requirement holds whenever the masses of timelike fields a... | https://arxiv.org/abs/2510.09957 | Academic Papers | svg |
ff67d90253303452ec9fd0315541c784b09b031c569a9d7ab522b1d2a15700b1 | 2026-01-21T00:00:00-05:00 | TCitH- and VOLEitH-based Signatures from Restricted Decoding | arXiv:2510.11224v2 Announce Type: replace-cross Abstract: Threshold-Computation-in-the-Head (TCitH) and VOLE-in-the-Head (VOLEitH), two recent developments of the MPC-in-the-Head (MPCitH) paradigm, have significantly improved the performance of digital signature schemes. This work embeds the restricted decoding problem... | https://arxiv.org/abs/2510.11224 | Academic Papers | svg |
4a09031d8ddada1e98e37c5d6c667d00f8f36e276cad9c9ff7345c938abbe3fd | 2026-01-21T00:00:00-05:00 | Unsupervised Constitutive Model Discovery from Sparse and Noisy Data | arXiv:2510.13559v2 Announce Type: replace-cross Abstract: Recently, unsupervised constitutive model discovery has gained attention through frameworks based on the Virtual Fields Method (VFM), most prominently the EUCLID approach. However, the performance of VFM-based approaches, including EUCLID, is affected by measure... | https://arxiv.org/abs/2510.13559 | Academic Papers | svg |
6a5074ca3eb93c17437ef1b13994808af66e16cf0992e2baff4de3f0a54f964e | 2026-01-21T00:00:00-05:00 | Cyclic Counterfactuals under Shift-Scale Interventions | arXiv:2510.25005v2 Announce Type: replace-cross Abstract: Most counterfactual inference frameworks traditionally assume acyclic structural causal models (SCMs), i.e. directed acyclic graphs (DAGs). However, many real-world systems (e.g. biological systems) contain feedback loops or cyclic dependencies that violate acyc... | https://arxiv.org/abs/2510.25005 | Academic Papers | svg |
31146b5f0efc0fd35c872b9a5d758e61028704307e71de676b3f3c8445f5b8d9 | 2026-01-21T00:00:00-05:00 | Conformal Prediction-Driven Adaptive Sampling for Digital Water Twins | arXiv:2511.05610v2 Announce Type: replace-cross Abstract: Digital Twins (DTs) for Water Distribution Networks (WDNs) require accurate state estimation with limited sensors. Uniform sampling often wastes resources across nodes with different uncertainty. We propose an adaptive framework combining LSTM forecasting and Co... | https://arxiv.org/abs/2511.05610 | Academic Papers | svg |
d43b20bb59ae05ac12d0a755156440189ad56c53a2720c48a119582d576f6e01 | 2026-01-21T00:00:00-05:00 | Orbital Stability of Closely-Spaced Four-planet Systems | arXiv:2601.11692v1 Announce Type: new Abstract: We investigate the orbital dynamics of four-planet systems consisting of Earth-mass planets on initially-circular, coplanar orbits around a star of one solar mass. In our simulations, the innermost planet's semimajor axis is set at 1 AU, with subsequent semimajor axes spa... | https://arxiv.org/abs/2601.11692 | Academic Papers | svg |
f8379feb126aa6bc72459344245c0bd981dd72f66eeee04f33c26c90d0c5c0a5 | 2026-01-21T00:00:00-05:00 | Exoplanet atmospheres and demographics in the 2040s | arXiv:2601.11695v1 Announce Type: new Abstract: Direct observations of exoplanets probe the demographics and atmospheric composition of young self-luminous companions, yielding insight into their formation and early evolution history. In the near future, Gaia will reveal hundreds of nearby young exoplanets amenable to ... | https://arxiv.org/abs/2601.11695 | Academic Papers | svg |
ccc0ac83bd045f17066ec0669bce671b86d332a6996f53bdc2ac9825b95ccb64 | 2026-01-21T00:00:00-05:00 | Hedorah, the first yellow supergiant Kaiju star candidate at $z\approx3$ revealed by behind AS1063 | arXiv:2601.11704v1 Announce Type: new Abstract: We present a new free-form lens model for the $z=0.348$ galaxy cluster AS1063, based on previously spectroscopically confirmed lensed galaxies and new images from the GLIMPSE program. We use the ultra-deep data to identify new counterimages for previously confirmed (spect... | https://arxiv.org/abs/2601.11704 | Academic Papers | svg |
d91e40cee7790479e585c2cbbc94ea2ef75786d9a18b31d1a9d986baf5367be6 | 2026-01-21T00:00:00-05:00 | Inferring hemispheric asymmetries of stellar active regions through the information content of astrometric signals | arXiv:2601.11707v1 Announce Type: new Abstract: Photometric light curves suffer from fundamental degeneracies that limit surface information recovery. We demonstrate that astrometry enables access to complementary information through photocentre variations induced by rotating surface features. The forthcoming commissio... | https://arxiv.org/abs/2601.11707 | Academic Papers | svg |
154c2cb1e8c40c521fd181cfc87f07e19786d4c3b7223887d06780b04cdcaae1 | 2026-01-21T00:00:00-05:00 | The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) I: Motivation, sample, data reduction, and results overview | arXiv:2601.11708v1 Announce Type: new Abstract: The outer regions of planetary systems host dusty debris discs analogous to the Kuiper belt (exoKuiper belts), which provide crucial constraints on planet formation and evolution processes. ALMA dust observations have revealed a great diversity, and that some belts contai... | https://arxiv.org/abs/2601.11708 | Academic Papers | svg |
5a70bebfb38953b04b921e8ee8cdcf447ab6ee56fbd417c929e0ebf6b38297f7 | 2026-01-21T00:00:00-05:00 | The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) IX: Gas-driven origin for the continuum arc in the debris disc of HD 121617 | arXiv:2601.11709v1 Announce Type: new Abstract: Debris discs were long considered to be largely gas-free environments governed by collisional fragmentation, gravitational stirring, and radiative forces. Recent CO detections show that gas is present, but its abundance and origin remain uncertain. The ALMA survey to Reso... | https://arxiv.org/abs/2601.11709 | Academic Papers | svg |
5947034e95b666f6af6b1a3ef8064b0d971fd48be492e5a394388cfbd6d1afc2 | 2026-01-21T00:00:00-05:00 | Resonant Scattering of the He I 1.0833$\mu$m Triplet in H II Regions: Emission Spectra | arXiv:2601.11710v1 Announce Type: new Abstract: Resonant scattering of He I 1.0833$\mu$m triplet photons by metastable He 2 $^3$S$_1$ is studied for optical depths characteristic of H II regions. Regions with large He 2 $^3$S$_1$ column densities are predicted to have unusually broad, multi-peaked 1.0833$\mu$m emission... | https://arxiv.org/abs/2601.11710 | Academic Papers | svg |
c2df6965625e3c974fe77bb723c1d8f3749e583eb8a6266af0f6c30f4bb39b2d | 2026-01-21T00:00:00-05:00 | The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) VIII: A dust arc and non-Keplerian gas kinematics in HD 121617 | arXiv:2601.11711v1 Announce Type: new Abstract: ExoKuiper belts around young A-type stars often host CO gas, whose origin is still unclear. The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) includes 6 of these gas-bearing belts, to characterise their dust and gas distributions and investigate the gas origi... | https://arxiv.org/abs/2601.11711 | Academic Papers | svg |
b0889838b125ea6ecb4e46a55554e5b3e91e80ef6c579b2e25918354749c7526 | 2026-01-21T00:00:00-05:00 | The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) IV: CO gas imaging and overview | arXiv:2601.11712v1 Announce Type: new Abstract: CO gas is detected in a significant number of debris discs, but its origin and evolution remains unclear. Key constraints are its mass and spectro-spatial distribution, which are coupled through optical depth and have only been analysed at low to moderate resolution so fa... | https://arxiv.org/abs/2601.11712 | Academic Papers | svg |
5aefdbbd3dbcfd878010d345dd3f59b63a37558ea15230f6d364eed63044c5f8 | 2026-01-21T00:00:00-05:00 | Blobs and Blurs: A Citizen Science-Identified Catalog of Diffuse Galaxies in the Fornax Cluster | arXiv:2601.11715v1 Announce Type: new Abstract: We present a catalog of 643 diffuse galaxies identified through a citizen science search of the Fornax cluster, of which we estimate 21.8% are nucleated (139/637; 6 inconclusive). This marks the first crowd-sourced effort to construct a cluster-scale census of diffuse gal... | https://arxiv.org/abs/2601.11715 | Academic Papers | svg |
6b5aaf1fd445ac5221d4ea547b81da38065c8e14dc80dc9739d7d3b007ff8fcc | 2026-01-21T00:00:00-05:00 | Discovery of High X-Ray Polarization from the Neutron Star Low-Mass X-Ray Binary Cyg X-2 in the Horizontal Branch | arXiv:2601.11718v1 Announce Type: new Abstract: We present results from simultaneous X-ray polarimetric and spectroscopic observations of the bright neutron star low-mass X-ray binary Cyg X-2, performed by the Imaging X-ray Polarimetry Explorer (IXPE) and the Nuclear Spectroscopic Telescope Array (NuSTAR). IXPE detecte... | https://arxiv.org/abs/2601.11718 | Academic Papers | svg |
f1d5b1feefbf15f3e66b1f0d36ff81e575f2bb2229d9c91cc6f04d170333b4ee | 2026-01-21T00:00:00-05:00 | The ALMA survey to Resolve exoKuiper belt Substructures (ARKS). X. Interpreting the peculiar dust rings around HD 131835 | arXiv:2601.11732v1 Announce Type: new Abstract: Dusty discs detected around main-sequence stars are thought to be signs of planetesimal belts in which the dust distribution is shaped by collisional and dynamical processes, including interactions with gas if present. The debris disc around the young A-type star HD 13183... | https://arxiv.org/abs/2601.11732 | Academic Papers | svg |
db177d56c82121dc951b9184e49b54542ddb5d748510ed89fa4542effe242050 | 2026-01-21T00:00:00-05:00 | Using Astrometry to Break Degeneracies in Stellar Surface Mapping | arXiv:2601.11737v1 Announce Type: new Abstract: Astrometric jitter noise arises when starspots on a rotating stellar surface move in and out of view, shifting the photocenter. This noise may limit our ability to detect and weigh small, sub-Neptune-sized planets around active stars. By deriving a linear forward model fo... | https://arxiv.org/abs/2601.11737 | Academic Papers | svg |
26e17485491a2c3e95f5670038c35330ea0f1d234704e19e505be218f955c139 | 2026-01-21T00:00:00-05:00 | Black hole accretion disks with outflows II. Time dependent Green's function solutions in Newtonian gravity | arXiv:2601.11754v1 Announce Type: new Abstract: We present Green's function solutions of the Newtonian time-dependent thin disk equations in the presence of outflows, showing that simple and exact analytical expressions exist in various natural limits of the problem. These Green's functions are mathematically very simi... | https://arxiv.org/abs/2601.11754 | Academic Papers | svg |
93576e5b46b1c3c20b5dfdc63c7c98b90f37932acfa24504a50384ec514077f8 | 2026-01-21T00:00:00-05:00 | The impact of attenuation on cosmic-ray chemistry: I. Abundances and chemical calibrators in molecular clouds | arXiv:2601.11761v1 Announce Type: new Abstract: The chemistry of shielded molecular gas is primarily driven by energetic, charged particles dubbed cosmic rays (CRs), in particular those with energies under 1 GeV. CRs ionize molecular hydrogen and helium, the latter of which contributes greatly to the destruction of mol... | https://arxiv.org/abs/2601.11761 | Academic Papers | svg |
6da1922fa78cef5f76b5b4026efd2256d64678d76d00a1dfa70596833f5a54e5 | 2026-01-21T00:00:00-05:00 | The ALMA survey to Resolve exoKuiper belt Substructures (ARKS): VI. Asymmetries and offsets | arXiv:2601.11766v1 Announce Type: new Abstract: Asymmetries in debris discs provide unique clues to understand the evolution and architecture of planetary systems.** The aim of the ALMA survey to Resolve exoKuiper belt Substructures (ARKS) is to expand our understanding of radial and vertical dust structures, as well a... | https://arxiv.org/abs/2601.11766 | Academic Papers | svg |
6bad40d6117608f4bac07014304f12e80e37cddbd3d34768752a553d322a8a10 | 2026-01-21T00:00:00-05:00 | A Multi-Wavelength Study of Comet C/2022 E3 (ZTF): Complementary ALMA and JWST Investigations of Water and Methanol in Cometary Comae | arXiv:2601.11767v1 Announce Type: new Abstract: Long-period comets, which are often considered to be representative of material in the protoplanetary disk that formed the Solar System, are ideal to investigate the question of chemical inheritance in astronomy. Determining the chemistry of comets, both individually and ... | https://arxiv.org/abs/2601.11767 | Academic Papers | svg |
28a49dc5645d5de44149f96dfdf4dd60025acb0ed268b812158f1c6aad1e9ae1 | 2026-01-21T00:00:00-05:00 | Einstein Probe discovery of EP J171159.4-333253: an eclipsing neutron star low-mass X-ray binary with clocked bursts | arXiv:2601.11784v1 Announce Type: new Abstract: EP J171159.4-333253 is a new neutron-star low-mass X-ray binary discovered in outburst by the Einstein Probe (EP) on 2025 June 23, exhibiting clocked type-I X-ray bursts, eclipses and dips. In this paper, we report on the results of the X-ray spectral and timing analyses ... | https://arxiv.org/abs/2601.11784 | Academic Papers | svg |
f98118010605b17bea28d65c1fbf1659926bcc85854dbe2cfdb4361a09718eb3 | 2026-01-21T00:00:00-05:00 | Increased and Varied Radiation during the Sun's Encounters with Cold Clouds in the last 10 million years | arXiv:2601.11785v1 Announce Type: new Abstract: Recent research raises the possibility that 3 and 7 million years ago, the Sun encountered massive clouds that shrank the heliosphere--the solar cocoon protecting our solar system--exposing Earth to its interstellar environment, in agreement with geological evidence from ... | https://arxiv.org/abs/2601.11785 | Academic Papers | svg |
5b22a27bb83d1747e0bb09fed1cd6500c615a29d99b676751edad8e3e76a1324 | 2026-01-21T00:00:00-05:00 | Habitable Worlds Observatory's Concept and Technology Maturation: Initial Feasibility and Trade Space Exploration | arXiv:2601.11803v1 Announce Type: new Abstract: The Habitable Worlds Observatory is the first telescope ever designed to search for life and will be a powerhouse of discovery across topics in astrophysics. The observatory was the top recommendation of the Astro2020 Decadal Survey for large missions and a new HWO Techno... | https://arxiv.org/abs/2601.11803 | Academic Papers | svg |
ce6a1a5e7d16a804de0387b22ad2a63c5dcf0df18e632402cf28eac971b649ce | 2026-01-21T00:00:00-05:00 | The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) VII: Optically thick gas with broad CO gaussian local line profiles in the HD 121617 disc | arXiv:2601.11824v1 Announce Type: new Abstract: CO gas has been detected in $\sim$20 debris discs. We present ALMA observations of the CO-rich HD 121617 debris disc from the ARKS survey. Using high-resolution Band 7 observations of $^{12}CO \ J=3-2$, we analyse local CO line profiles to investigate optical depth, CO ma... | https://arxiv.org/abs/2601.11824 | Academic Papers | svg |
e0c399a9510d518c43c54a797314843528b3f725f537bd3043254e4ea5586109 | 2026-01-21T00:00:00-05:00 | On the role of gravity, turbulence, and the magnetic field in angular momentum transfer within molecular clouds | arXiv:2601.11830v1 Announce Type: new Abstract: Observations of molecular structures on scales of $\sim 0.1-50$ pc show that the specific angular momentum ($j$) scales with radius ($R$) as $j\sim R^{3/2}$. We study the effects of turbulence, gravity, and the magnetic field in shaping this scaling, by measuring clump si... | https://arxiv.org/abs/2601.11830 | Academic Papers | svg |
1155491bbe155845fbc1554e8c9d0f529f12047190a4c8583e290b979b4a7f9d | 2026-01-21T00:00:00-05:00 | Template-free search for gravitational wave events using coincident anomaly detection | arXiv:2601.11842v1 Announce Type: new Abstract: Gravitational-wave (GW) observatories have used template-based search to detect hundreds of compact binary coalescences (CBCs). However, template-based search cannot detect astrophysical sources that lack accurate waveform models, including core-collapse supernovae, neutr... | https://arxiv.org/abs/2601.11842 | Academic Papers | svg |
23b2154353fceb20b0dbaf63a9f89f5202a695d21e47579af94d785094e99d74 | 2026-01-21T00:00:00-05:00 | Quiet, but not silent. The X-ray activity of the Maunder minimum star HD 166620 | arXiv:2601.11853v1 Announce Type: new Abstract: As the only known unambiguous star in a Maunder minimum-like chromospheric activity state, the properties of HD 166620 can provide valuable insight into the behaviour of the Sun during the historic extended low-states of its activity cycle. The coronal X-ray activity of H... | https://arxiv.org/abs/2601.11853 | Academic Papers | svg |
7d6ba928998d7c4f5a20bbf6abd62ff6bbda86ba82b83fb726993bc10315477b | 2026-01-21T00:00:00-05:00 | Data Mining-Based Cislunar Escape-Family Analysis in The Multi-Body Models | arXiv:2601.11881v1 Announce Type: new Abstract: Escape trajectories from the Earth-Moon system play an important role in interplanetary transfer. This paper focuses on the escape trajectories from a 167 km circular Earth orbit in the Earth-Moon planar circular three-body problem and the Sun-Earth/Moon planar bicircular... | https://arxiv.org/abs/2601.11881 | Academic Papers | svg |
4521ebfb13bc0912f7a49f23a68a16938d2c8d23c4c1526d6cb5f2a205a2b7ab | 2026-01-21T00:00:00-05:00 | Prediction of Multi-Wavelength Afterglows Associated with FRB 20200120E and FRB 20201124A | arXiv:2601.11887v1 Announce Type: new Abstract: Fast radio bursts (FRBs) are mysterious radio transients with uncertain origins and environments. Recent studies suggest that some active FRBs may originate from compact objects in binary systems. In this work, we develop a unified theoretical framework to model the multi... | https://arxiv.org/abs/2601.11887 | Academic Papers | svg |
1b332462bf03b17469f88e2ddeefe27389507618a911d77363fa87a1139a1dda | 2026-01-21T00:00:00-05:00 | Possible Multi-band Afterglows of FRB 20171020A and its Implication | arXiv:2601.11889v1 Announce Type: new Abstract: Fast Radio Bursts (FRBs) are millisecond-duration radio transients of mysterious origin, with growing evidence linking at least some of them to magnetars. While FRBs are primarily observed in the radio band, their potential multi-wavelength afterglows remain largely unexp... | https://arxiv.org/abs/2601.11889 | Academic Papers | svg |
eeb985aac80ee4782d4b594957513a0c6d1630c458044ad94228999d5fe68ae2 | 2026-01-21T00:00:00-05:00 | Evidence for 1.01 s Pulsations of the Central Compact Object in the Supernova Remnant RCW 103 with ASCA, XMM-Newton, and NuSTAR | arXiv:2601.11917v1 Announce Type: new Abstract: The neutron-star X-ray source 1E 161348-5055, associated with the supernova remnant RCW 103, exhibits clear intensity variations with a period of 6.67 hr. To clarify the nature of this object and its long periodicity, detailed timing studies were applied to its archival X... | https://arxiv.org/abs/2601.11917 | Academic Papers | svg |
02278c83a4c503ccda8413d5e1bd02651b169b1e8a030ba89fd4b8f87d30aa73 | 2026-01-21T00:00:00-05:00 | Captured are circularized: A relativistic treatment of extreme mass ratio inspirals crossing accretion disks | arXiv:2601.11925v1 Announce Type: new Abstract: A small body orbiting around an accreting massive object and periodically crossing its accretion disk is a common configuration in astrophysics. In this work, we investigate the secular evolution of extreme mass-ratio inspirals (EMRIs), in which a stellar-mass object (SMO... | https://arxiv.org/abs/2601.11925 | Academic Papers | svg |
2f15cb15e7b060c16d34a27eca58404a1d2ea70b56e7e1e812e99f325d3c7bc5 | 2026-01-21T00:00:00-05:00 | A Dynamo Confinement Scenario for the Solar Tachocline and its Implications for Spin-down in the Radiative Spreading Regime | arXiv:2601.11943v1 Announce Type: new Abstract: At the base of the Sun's convective zone, a narrow shear layer called the tachocline separates strong latitudinal differential rotation above from nearly rigid rotation in the radiative zone below. The observed thinness of the tachocline is a long-standing dynamical puzzl... | https://arxiv.org/abs/2601.11943 | Academic Papers | svg |
f36fa83b6a94a4d7ddd619b612450a8c1293b3f21ab60f99f2af769fe4b3385f | 2026-01-21T00:00:00-05:00 | Pushchino Multibeam Pulsar Search. IX. Detection of a minute-long transient on the LPA antenna | arXiv:2601.11950v1 Announce Type: new Abstract: A transient (LPA J0108+13) with repeated bursts was detected on the Large Phased Array (LPA) radio telescope at a central frequency of 110.4 MHz in the direction of the radio galaxy 3C 33. The flux density of bursts ranges from tens to hundreds of Jy, and the duration of ... | https://arxiv.org/abs/2601.11950 | Academic Papers | svg |
c0cc8e5c7d294bd2631df985137b3075d995cd07ea0d6be629bea4753db331e1 | 2026-01-21T00:00:00-05:00 | Euclid: Early Release Observations -- The extended stellar component of the IC10 dwarf galaxy | arXiv:2601.11997v1 Announce Type: new Abstract: We present a detailed analysis of the old, extended stellar component of the Local Group dwarf galaxy IC 10 using deep resolved-star photometry in the VIS and NISP bands of the Euclid Early Release Observations. Leveraging Euclid's unique combination of wide field of view... | https://arxiv.org/abs/2601.11997 | Academic Papers | svg |
4f2e555e799481d32a7f729445f6dfb35da985f677c200439236fd8700464aa1 | 2026-01-21T00:00:00-05:00 | The identification of new Herbig Ae/Be stars from LAMOST DR7 | arXiv:2601.12007v1 Announce Type: new Abstract: Herbig Ae/Be stars (HAeBes) are critical tracers of intermediate- and high-mass star formation, yet their census remains incomplete compared to low-mass young stellar objects like T-Tauri stars. To expand the known population, we systematically searched for HAeBes in LAMO... | https://arxiv.org/abs/2601.12007 | Academic Papers | svg |
d3af44878ddabf758b21f2c083a93f6188a5e2ddb81c100b3608aec8570500cf | 2026-01-21T00:00:00-05:00 | Interior dynamics of envelopes around disk-embedded planets | arXiv:2601.12074v1 Announce Type: new Abstract: In the core accretion scenario, forming planets start to acquire gaseous envelopes while accreting solids. Conventional one-dimensional models assume envelopes to be static and isolated. However, recent three-dimensional simulations demonstrate dynamic gas exchange from t... | https://arxiv.org/abs/2601.12074 | Academic Papers | svg |
6f062d2a7c6974695ff4d62d0197707b3ac80c20ff850f4b960681aeca157643 | 2026-01-21T00:00:00-05:00 | Uncovering the Next Galactic Supernova with the Vera C. Rubin Observatory | arXiv:2601.12094v1 Announce Type: new Abstract: Supernovae are observed to occur approximately 1-2 times per century in a galaxy like the Milky Way. Based on historical records, however, the last core-collapse galactic supernova observed by humans occurred almost 1,000 years ago. Luckily, we are well positioned to catc... | https://arxiv.org/abs/2601.12094 | Academic Papers | svg |
161e55174b549424b0a323f5514d19bf9953f1f14985be19e2b3b262081e097a | 2026-01-21T00:00:00-05:00 | Detection of a Millisecond Periodicity in BATSE Short Gamma-Ray Bursts | arXiv:2601.12108v1 Announce Type: new Abstract: Coherent oscillations at kilohertz frequencies have recently been detected in a small number of gamma-ray bursts (GRBs), suggesting quasi-periodic dynamics in their central engines. A prominent example is GRB~230307A, which exhibited a brief, highly coherent, energy-depen... | https://arxiv.org/abs/2601.12108 | Academic Papers | svg |
58657b3569447099659e240f6a53267849f26c8d0173c14be842be8b305322b7 | 2026-01-21T00:00:00-05:00 | Timing analysis of a sample of five cataclysmic variable candidates observed by the XMM-Newton satellite | arXiv:2601.12127v1 Announce Type: new Abstract: Intermediate polars are a class of cataclysmic variables in which a white dwarf accretes material from a companion star. The intermediate polar nature confirmation usually derives from the detection of two periods in both $X$-ray and optical photometry. In this respect, t... | https://arxiv.org/abs/2601.12127 | Academic Papers | svg |
9d172ab846dcd2d22003d661b7248d020b4b28746d6e706bafdc3c1124112215 | 2026-01-21T00:00:00-05:00 | The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) III: The vertical structure of debris disks | arXiv:2601.12128v1 Announce Type: new Abstract: Debris disks -- collisionally sustained belts of dust and sometimes gas around main sequence stars -- are remnants of planet formation processes and are found in systems ${\gtrsim}10$ Myr old. Millimeter-wavelength observations are particularly important, as the grains pr... | https://arxiv.org/abs/2601.12128 | Academic Papers | svg |
4485b82e5d56e6b049d8c1f2529548cfb35fda2c14cd29fc6a741e7949d107fe | 2026-01-21T00:00:00-05:00 | Exploring Superfluid Angular Momentum Reservoir Effect on Pulsar Glitches and Forecasting Next Glitches of the Crab Pulsar | arXiv:2601.12130v1 Announce Type: new Abstract: Pulsar glitches are generally viewed as stochastic events driven by sudden angular momentum transfer from the neutron star's superfluid interior to its crust. Except two peculiar pulsars with quasi-periodic glitches, this stochastic view has prevailed. Here, by clustering... | https://arxiv.org/abs/2601.12130 | Academic Papers | svg |
c638ca99e28d82d14bddc2e9bf5fdaf3f394b4f61cd3c9716537e53ed727ada0 | 2026-01-21T00:00:00-05:00 | Discovery of a soft X-ray lag in the tidal disruption event AT2021ehb | arXiv:2601.12240v1 Announce Type: new Abstract: In this Letter, we report the detection of soft X-ray time lags-i.e. variability in the softer photons lagging behind that in the harder photons-in seven XMM-Newton observations of the tidal disruption event (TDE) candidate AT2021ehb. We find correlated variability betwee... | https://arxiv.org/abs/2601.12240 | Academic Papers | svg |
8ea3650cd2f07fcb6965b33a526ea07a0d0722808a36024ce56c07b8d3be137e | 2026-01-21T00:00:00-05:00 | Reconciling the Systemic Kicks of Observed Millisecond Pulsars, Spider Pulsars, and Low-mass X-ray Binaries | arXiv:2601.12275v1 Announce Type: new Abstract: Millisecond pulsars (MSPs) have been proposed as evolutionary products of low-mass X-ray binaries (LMXBs) through a stage in which they are spider pulsars (i.e., redbacks and black widows). However, recent work has found that the systemic kicks of observed MSPs are signif... | https://arxiv.org/abs/2601.12275 | Academic Papers | svg |
a66077799b1689f2d5e0dbb357f63e06bfe29096b4743c5436778df66a8e3ef3 | 2026-01-21T00:00:00-05:00 | The MAGPI Survey: co-evolution of baryons and dark matter in star-forming disk-like galaxies at $0.1 \lesssim z \lesssim 0.85$ | arXiv:2601.12315v1 Announce Type: new Abstract: We present a comprehensive analysis of the dark matter (DM) content and its structural dependence in star-forming disk-like galaxies at intermediate redshifts ($0.1 \lesssim z \lesssim 0.85$), utilizing spatially resolved kinematic data from the MAGPI survey. We report th... | https://arxiv.org/abs/2601.12315 | Academic Papers | svg |
29105dd7043396cc3375f8363bd809eb4fa78ce10947260a3599b72db7f2da5b | 2026-01-21T00:00:00-05:00 | Unveiling the First O-Type Bloated Star Candidate through ALMA and EVLA Observations | arXiv:2601.12336v1 Announce Type: new Abstract: We investigate the circumstellar environment of the O-type bloated star candidate IRAS 19520+2759 (I19520) using high-resolution observations from the Atacama Large Millimeter/submillimeter Array (ALMA) and the Expanded Very Large Array (EVLA). Radio continuum emission tr... | https://arxiv.org/abs/2601.12336 | Academic Papers | svg |
11a8bb4a1d600cab668661c6c432b4894b071d6aededa1476ee9fe2b1b800ad0 | 2026-01-21T00:00:00-05:00 | Revisiting the exoplanet radius valley with host stars from SWEET-Cat | arXiv:2601.12396v1 Announce Type: new Abstract: The radius valley,a deficit of planets near 2 $\mathrm{R_{\oplus}}$, was observed among exoplanets of radius $\lesssim$ 5 $\mathrm{R_{\oplus}}$ with periods $<$ 100 days by NASA's $Kepler$ mission. It separates super-Earths (rocky, $\lesssim 1.9$ $\mathrm{R_{\oplus}}$) fr... | https://arxiv.org/abs/2601.12396 | Academic Papers | svg |
7267e18982e37fdc0b87c1914eda2f88094abd0d8604df5b0385341679795af4 | 2026-01-21T00:00:00-05:00 | Updated indicators of oxygen metallicity for high-$z$ galaxies | arXiv:2601.12413v1 Announce Type: new Abstract: Recent work has demonstrated that widely used strong-line oxygen abundance indicators, such as O3N2, $\rm R23$, and $\widehat{\rm R}$, suffer from large uncertainties when applied to high-redshift galaxies. We show that this loss of precision primarily arises because, at ... | https://arxiv.org/abs/2601.12413 | Academic Papers | svg |
ea0c238a2dd05f074b93d2b76bf910b7d2ae67d8b6ac5565bdcd44f0d22dc0fe | 2026-01-21T00:00:00-05:00 | Probing Circumstellar Material and Shock Acceleration in Core-Collapse Supernovae with High-Energy Neutrinos | arXiv:2601.12417v1 Announce Type: new Abstract: We study high-energy (HE) neutrino production from interactions between supernova (SN) ejecta and the surrounding circumstellar material (CSM), focusing on regular Type~II and Type~IIn SNe. Using observationally inferred CSM density distributions, we calculate the resulti... | https://arxiv.org/abs/2601.12417 | Academic Papers | svg |
5a2a593c4aa7a55d3d2e5991b8c7eb6e04fb99744e642cceb6e7c8748bcaa47c | 2026-01-21T00:00:00-05:00 | Modified hadronic interactions in 3-dimensional simulations | arXiv:2601.12422v1 Announce Type: new Abstract: We present a method to test the impact of ad-hoc modifications of some of the generic parameters of hadronic interactions -- cross section, elasticity, and multiplicity -- on any observable quantity using full 3-dimensional simulations of extensive air showers induced by ... | https://arxiv.org/abs/2601.12422 | Academic Papers | svg |
ac29c3ee16f9f8105890a659b1185f48fd78e13351d6d13a87c8b1bd7e81c142 | 2026-01-21T00:00:00-05:00 | A long-term multiwavelength study of the flat spectrum radio quasar OP 313 | arXiv:2601.12474v1 Announce Type: new Abstract: The Flat Spectrum Radio Quasar OP 313 is a high-redshift (z = 0.997) blazar that entered an intense gamma-ray active phase from November 2023 to March 2024, as observed by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope. We present a multiwavel... | https://arxiv.org/abs/2601.12474 | Academic Papers | svg |
afb5e8fbd45c75e5f17475783c4677aeadcb4a19ac2f9ed68f222c776fcbd5d4 | 2026-01-21T00:00:00-05:00 | Observational Signatures of Planetary Tidal Disruption Events Around Solar-Mass Stars | arXiv:2601.12501v1 Announce Type: new Abstract: The tidal disruption of planets by their host stars represents a growing area of interest in transient astronomy, offering insights into the final stages of planetary system evolution. We model the hydrodynamic evolution and predict the multi-wavelength observational sign... | https://arxiv.org/abs/2601.12501 | Academic Papers | svg |
24ea910a1092afce1828e7c89589e683502c1ee1a88ab1d7d94f7cdd62555b03 | 2026-01-21T00:00:00-05:00 | Nuclear astrophysics | arXiv:2601.12508v1 Announce Type: new Abstract: Reactions between atomic nuclei are measured in great detail in terrestrial laboratory experiments; transferring and extrapolating this knowledge to how the same reactions act within cosmic environments presents major challenges. Cross-disciplinary efforts are needed in v... | https://arxiv.org/abs/2601.12508 | Academic Papers | svg |
1517569615cfbc6b1347c861fae49875bcc0ea2d390005ed89b6c9fb1b286742 | 2026-01-21T00:00:00-05:00 | Not so-dark: High resolution HI imaging of J0139+4328 and identification of an optical counterpart | arXiv:2601.12513v1 Announce Type: new Abstract: Dark galaxies - systems rich in neutral hydrogen (HI) gas but with no stars - are a common prediction of numerous theoretical models and cosmological simulations. However, the unequivocal identification of such sources in current HI surveys has proven challenging. In this... | https://arxiv.org/abs/2601.12513 | Academic Papers | svg |
7820228a6c867e80c21e3d8912db0df4f72d80cdcfb35fd61b056893a731bf31 | 2026-01-21T00:00:00-05:00 | Magnetic field detections in massive systems at different stages of interaction | arXiv:2601.12546v1 Announce Type: new Abstract: Despite the importance of magnetic fields in massive stars, their origin is widely debated and still not well understood. With the mounting evidence for the importance of studying magnetic fields in interacting massive binary and multiple systems, it appears necessary to ... | https://arxiv.org/abs/2601.12546 | Academic Papers | svg |
c01d48e6271c0ef92bddf2695832647cec6be41f167e2d358b7bf29cdcff6e8e | 2026-01-21T00:00:00-05:00 | Analytic Modeling of Tidally Locked Rocky Planet Atmospheres Across Dynamical Regimes | arXiv:2601.12556v1 Announce Type: new Abstract: We present a new first-principles analytic approach to interpreting eclipses and phase curves of rocky planets. Observations with JWST have reported nondetections of atmospheres around the majority of hot rocky planets orbiting M dwarfs. However, most of these "bare rock"... | https://arxiv.org/abs/2601.12556 | Academic Papers | svg |
cf7647eea958e74521c01d1d33885111ab8bc9467f1547b8dbf6c33f2455d839 | 2026-01-21T00:00:00-05:00 | Clouds and Chemistry Across the Brown Dwarf T-Y Sequence: Insights from JWST Atmospheric Retrievals | arXiv:2601.12575v1 Announce Type: new Abstract: The James Webb Space Telescope (JWST) offers exceptional spectral resolution and wavelength coverage, which are essential for studying the coldest brown dwarfs, particularly Y dwarfs. These objects are at the cold end of the sub-stellar sequence and exhibit atmospheric ph... | https://arxiv.org/abs/2601.12575 | Academic Papers | svg |
f783d64cf8a2b11d50cb67acd01a1aa7dd57af1f9c9f66cff4c0c943ee1d8f36 | 2026-01-21T00:00:00-05:00 | On the accuracy of mass and size measurements of young protoplanetary disks | arXiv:2601.12578v1 Announce Type: new Abstract: Knowing the masses and sizes of protoplanetary disks is of fundamental importance for the contemporary theories of planet formation. However, their measurements are associated with large uncertainties. In this proof of concept study, we focus on the very early stages of d... | https://arxiv.org/abs/2601.12578 | Academic Papers | svg |
e603fd3408ca902e2de8a4de623b0dd05fe7942be1a93780a3c21c9d156efc94 | 2026-01-21T00:00:00-05:00 | The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) V: Comparison between scattered light and thermal emission | arXiv:2601.12586v1 Announce Type: new Abstract: Debris discs are analogues to our own Kuiper belt around main-sequence stars and are therefore referred to as exoKuiper belts. They have been resolved at high angular resolution at wavelengths spanning the optical to the submillimetre-millimetre regime. Short wavelengths ... | https://arxiv.org/abs/2601.12586 | Academic Papers | svg |
006c9f6ae115dc0d656a6c40505b78a5a857d4566d391bc506afaf6b85ed628e | 2026-01-21T00:00:00-05:00 | The DESI Transients Survey: Legacy Classifications and Methodology | arXiv:2601.12611v1 Announce Type: new Abstract: We present the first systematic spectroscopic observations of extragalactic transients from the Dark Energy Spectroscopic Instrument (DESI), as part of the DESI Transients Survey program. With 5,000 fibers and an ${\sim} 8$ deg$^2$ field of view, we exploit DESI as a mach... | https://arxiv.org/abs/2601.12611 | Academic Papers | svg |
706e07f800100b07c6e4a26a1feb92f856d344db8943b7cb597d70d4c0c3e466 | 2026-01-21T00:00:00-05:00 | LAMOST J113208.06-005052.3 and LAMOST J052957.56+344127.0: two new binaries with a hot white dwarf and a flaring companion star | arXiv:2601.12647v1 Announce Type: new Abstract: Binaries contain rich physical information, and the study of binaries has always been a hot topic in stellar physics research. The stars LAMOST J1132 and LAMOST J0529 have not yet been recorded in the SIMBAD astronomical database. We have investigated their physical prope... | https://arxiv.org/abs/2601.12647 | Academic Papers | svg |
065a89b95a2d5eda259ad33d684c22b689c119897ac615ea5e11323d250d6930 | 2026-01-21T00:00:00-05:00 | PyIRD: A Python-Based Data Reduction Pipeline for Subaru/IRD and REACH | arXiv:2601.12669v1 Announce Type: new Abstract: PyIRD is a Python-based pipeline for reducing spectroscopic data obtained with IRD (InfraRed Doppler; Kotani et al. (2018)) and REACH (Rigorous Exoplanetary Atmosphere Characterization with High dispersion coronagraphy; Kotani et al. (2020)) on the Subaru Telescope. It is... | https://arxiv.org/abs/2601.12669 | Academic Papers | svg |
5b60256e98b312f766aedae558b818ee9d4fd6e7492d0e1e7b90b29f5aeb82ff | 2026-01-21T00:00:00-05:00 | Rate of Repeating Tidal Disruption Events with 5--19 years interval constrained by CRTS and ZTF | arXiv:2601.12691v1 Announce Type: new Abstract: Statistics on tidal disruption events (TDEs) may be contaminated by repeating TDEs (rTDEs), which have been extensively discovered recently. However, the origin of rTDEs remains unclear. In addition, no statistical research on rTDEs with time intervals $>5$ years has been... | https://arxiv.org/abs/2601.12691 | Academic Papers | svg |
2b3dee33bbff373f9761845f0a971f3fd395989ba6cd3a900229c6798db1c1ac | 2026-01-21T00:00:00-05:00 | Optical Continuum Light Curves and Bolometric Energy Estimates of Solar White-light Flares | arXiv:2601.12709v1 Announce Type: new Abstract: Solar white-light flares (WLFs) are solar flares exhibiting enhanced emission in the optical continuum. They are critical for understanding energy release and transport mechanisms in solar flares and for conducting comparative studies with stellar WLFs. However, the scarc... | https://arxiv.org/abs/2601.12709 | Academic Papers | svg |
d2f90e9f4d37e18c7689dc42fed07689ee0a487568dd848e33c7dc97bfcb35f7 | 2026-01-21T00:00:00-05:00 | Discovery of Multiple Ultra-Broad-Velocity Molecular Features Associated with the W44 Molecular Cloud | arXiv:2601.12728v1 Announce Type: new Abstract: We report the discovery of multiple compact molecular features exhibiting extremely broad velocity widths toward the W44 molecular cloud. ALMA CO $J$=3--2 data reveal eight ``Petit--Bullets'' surrounding the previously known ``Bullet.'' Each Petit--Bullet shows a distinct... | https://arxiv.org/abs/2601.12728 | Academic Papers | svg |
09c0c8dd9d679e94f37aaca64d1b5aeb85ef41eb7c86fb162b0977be96b410ef | 2026-01-21T00:00:00-05:00 | Non-adiabatic Effect on Convective Mode | arXiv:2601.12756v1 Announce Type: new Abstract: The systematic analysis of non-adiabatic effect on convective mode has been conducted using wave energy relation. In the adiabatic analysis, the "propagation diagram" for convective mode is proposed as a useful tool to see its behavior. In the non-adiabatic analysis, it i... | https://arxiv.org/abs/2601.12756 | Academic Papers | svg |
350e06c6b818113ed189d6322794da43a38f9dc2cad82c73bf9a94039f745162 | 2026-01-21T00:00:00-05:00 | Testing Red Clump Models with the Asteroseismic Binary KIC 10841730 | arXiv:2601.12773v1 Announce Type: new Abstract: Binaries in which both stars are pulsating are rare but extremely valuable. We present the first study of an asteroseismic binary system consisting of a core helium-burning red clump (RC) star and a red giant branch (RGB) star. The Kepler target KIC 10841730 is a wide bin... | https://arxiv.org/abs/2601.12773 | Academic Papers | svg |
5cf4e31d429ca799862b257199d15ea3b75387807354e1f6761476d0a0b87261 | 2026-01-21T00:00:00-05:00 | Classical Be Stars and Classical Be Star Binaries from LAMOST DR12 | arXiv:2601.12789v1 Announce Type: new Abstract: Classical Be (CBe) stars are rapidly rotating B-type stars with Balmer emission lines that originated from the decretion disks surrounding them in their spectra. Accounting for $\sim$20% of all B-type stars, most CBe stars are thought to form through mass and angular mome... | https://arxiv.org/abs/2601.12789 | Academic Papers | svg |
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