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we perform an extensive study of the correlations between the neutrino-nucleon inverse mean free paths (imfps) and the underlying equation of states (eoss). strong interaction uncertainties in the neutrino mean free path are investigated in different density regimes. the nucleon effective mass, the nucleon chemical pot... | uncertainty quantification for neutrino opacities in core-collapse supernovae and neutron star mergers |
a quark-nova is a hypothetical stellar evolution branch where a neutron star converts explosively into a quark star. here, we discuss the intimate coupling between the micro-physics and macro-physics of the quark-nova and provide a prescription for how to couple the burn-ud code to the stellar evolution code in order t... | the macro-physics of the quark-nova: astrophysical implications |
a detailed study of the charged-current supernova electron neutrino and electron antineutrino scattering off the stable even-mass lead isotopes a =204 , 206, and 208 is reported in this work. the proton-neutron quasiparticle random-phase approximation (pnqrpa) is adopted to construct the nuclear final and initial state... | theoretical estimates of supernova-neutrino cross sections for the stable even-even lead isotopes: charged-current reactions |
in order to explain the recently reported peak at 3.55 kev in the galactic x-ray spectrum, we propose a simple model. in this model, the standard model is extended by including a neutral spin-3/2 vector-like fermion that transforms like a singlet under sm gauge group. this 7.1 kev spin-3/2 fermion is considered to comp... | anomalous x-ray galactic signal from 7.1 kev spin-3/2 dark matter decay |
future neutrino detectors will obtain high-statistics data from a nearby core-collapse supernova. we study the mixing with ev-mass sterile neutrinos in a supernova environment and its effects on the active neutrino fluxes as detected by hyper-kamiokande and icecube. using a markov chain monte carlo analysis, we make pr... | prospects for detecting ev-scale sterile neutrinos from a galactic supernova |
supernova relic neutrino (srn) has not been observed yet because of its low event rate and high background. by adding gadolinium into water cherenkov detector, inverse beta decay will have two signals, the prompt one is positron signal and the delayed one is a ~8 mev gamma cascade from neutron capture on gadolinium. by... | current status of sk-gd project and egads |
we examine the sensitivity of neutrino emission to stellar evolution models for a 15 m⊙ progenitor, paying particular attention to a phase prior to the collapse. we demonstrate that the number luminosities in both electron-type neutrinos (νe) and their antipartners ( $\bar{\nu }_\mathrm{ e}$ ) differ by more than an or... | the sensitivity of presupernova neutrinos to stellar evolution models |
the measurement of the period and period derivative, and the canonical model of dipole radiation have provided a method to estimate the low superficial magnetic fields in the so-called central compact objects (ccos). in the present work, a scenario is introduced in order to explain the magnetic behavior of such ccos. b... | hypercritical accretion scenario in central compact objects accompanied with an expected neutrino burst |
intensity interferometry is a technique that has been used to measure the size of sources ranging from the quark-gluon plasma formed in heavy ion collisions to the radii of stars. we investigate using the same technique to measure protoneutron star (pns) radii with the neutrino signal received from a core-collapse supe... | neutrino intensity interferometry: measuring protoneutron star radii during core-collapse supernovae |
at the end of a massive star’s life, a violent explosion known as a supernova occurs and releases 99% of the star’s gravitational binding energy in the form of neutrinos. although the explosion generates a huge burst of neutrinos, the large distance to earthbound detectors, low cross sections, and flavour changing osci... | supernovae and sno+ |
mup is the minimum stellar mass that, after the core-helium burning, develops temperature and density conditions for the occurrence of a hydrostatic carbon burning. stars whose mass is lower than this limit are the progenitors of c-o white dwarfs and, when belong to a close binary system, may give rise to explosive phe... | do we really know mup (i.e. the transition mass between type ia and core-collapse supernova progenitors)? |
understanding the mechanism of core-collapse supernova explosions requires knowledge of the nuclear equation of state (eos). recent multi-dimensional numerical simulations indicate that explosions are possible. nevertheless, it is not yet fully understood which equation of state is realized in the proto-neutron star fo... | eos dependence of the relic supernova neutrino spectrum |
understanding neutrino flavor transformation in dense environments such as core-collapse supernovae (ccsn) is critical for inferring the physics of these events and interpreting a detected neutrino signal. the role of direction-changing collisions in shaping the neutrino flavor field in these environments is important ... | inference solves a boundary-value collision problem with relevance to neutrino flavor transformation |
sterile neutrinos of kev masses are one of the most promising candidates for the warm dark matter, which could solve the small-scale problems encountered in the scenario of cold dark matter. we present a detailed study of the production of such sterile neutrinos in a supernova core, and derive stringent bounds on the a... | supernova bounds on kev-mass sterile neutrinos |
in this article the role of the supersaturation density equation of state (eos) is explored in simulations of failed core-collapse supernova explosions. therefore the nuclear eos is extended via a one-parameter excluded-volume description for baryons, taking into account their finite and increasing volume with increasi... | constraining the supersaturation density equation of state from core-collapse supernova simulations?. excluded volume extension of the baryons |
this paper describes algorithms for nonrelativistic hydrodynamics in the toolkit for high-order neutrino radiation hydrodynamics (thornado), which is being developed for multiphysics simulations of core-collapse supernovae (ccsne) and related problems with runge-kutta discontinuous galerkin (rkdg) methods. more specifi... | thornado-hydro: a discontinuous galerkin method for supernova hydrodynamics with nuclear equations of state |
most of the energy released by the gravitational collapse of the cores of massive stars is carried away by neutrinos. the self-consistent problem of gravitational collapse is solved using 2d gas dynamics considering the spectral transport of neutrinos in the flux-limited diffusion. it is shown that large-scale convecti... | nonequilibrium neutronization and large-scale convection in gravitational collapse |
low-energy neutrinos are clean messengers from supernovae explosions and probably carry unique insights into the process of stellar evolution. we estimate the expected number of events considering coherent elastic scattering of neutrinos off silicon nuclei, as would happen in charge coupled devices (ccd) detectors. the... | supernovae neutrino detection via coherent scattering off silicon nuclei |
the neutrino beam driven instability of fast and slow magnetosonic waves with oblique applied magnetic field in multi-component ion, electron and neutrino beam plasma is studied. the dissipation effects of ion-neutral collisions are also included in the model. the neutrino and electron interactions through electro-weak... | neutrino beam driven instability of magnetosonic waves in the presence of oblique magnetic field and ion-neutral collisional effect in plasmas |
the cryogenic apparatus for precision tests of argon interactions with neutrinos (captain) program is designed to make measurements of scientific importance to long-baseline neutrino physics and physics topics that will be explored by large underground detectors. the experiment employs two liquid argon time projection ... | the captain experiment |
the large volume detector (lvd) at infn laboratori nazionali del gran sasso, italy is a 1 kt liquid scintillator neutrino observatory mainly designed to study low energy neutrinos from gravitational stellar collapses (gsc) with 100% efficiency over the entire galaxy. here we summarize the results of the search for supe... | the core collapse supernova rate from 24 years of data of the large volume detector |
the conventional neutrino transport theory for core-collapse supernovae misses one key property of neutrinos: the left-handedness. the chirality of neutrinos modifies the hydrodynamic behavior at the macroscopic scale and leads to topological transport phenomena. we argue that such transport phenomena should play impor... | chiral transport of neutrinos in supernovae |
this paper presents the scenario that gravitational waves, generated in core-collapse of a pre-supernova star, can produce both electromagnetic radiation and sound radiation as the gravitational wave propagates outward from the collapsing core. while the energy of this co-produced electromagnetic and/or sound radiation... | production of electromagnetic and sound radiation from gravitational waves in core-collapse supernovae |
neutrino interactions in low energy regions below 30 mev, where the experimental searches for supernova relic neutrino are conducted, have a large uncertainty due to complicated nuclear effects such as the pauli blocking effect and de-excitation of a residual nucleus. understanding the effect of nuclear de-excitation i... | nuclear de-excitation associated with neutrino-carbon interactions |
assessing the consistency of parameter constraints derived from different cosmological probes is an important way to test the validity of the underlying cosmological model. in an earlier work [1], we computed constraints on cosmological parameters for λcdm from an integrated analysis of cmb temperature anisotropies and... | integrated cosmological probes: concordance quantified |
the spin light of neutrino (slν) is a new possible mechanism of electromagnetic radiation by a massive neutrino (with a nonzero magnetic moment) moving in media. since the prediction of this mechanism, the question has been debated in a number of publications as whether the effect can be of any significance for realist... | spin light of neutrino in astrophysical environments |
we present the results of a search for astrophysical sources of brief transient neutrino emission using icecube and deepcore data acquired between 2012 may 15 and 2013 april 30. while the search methods employed in this analysis are similar to those used in previous icecube point source searches, the data set being exa... | the search for transient astrophysical neutrino emission with icecube-deepcore |
the theory and phenomenology of supernova neutrinos is reviewed, with focus on the most recent advancements on the neutrino flux predicted by supernova numerical models, on neutrino oscillations inside the star and in the earth, and on the physics of the diffuse supernova neutrino background. future directions of resea... | theory and phenomenology of supernova neutrinos |
the icecube neutrino observatory, which instruments 1$\,$km$^3$ of clear ice at the geographic south pole, was mainly designed to detect particles with energies in the multi-gev to pev range. due to ice temperatures between $-20^\circ$c to $-43^\circ$c and the low radioactivity of the ice, the dark noise rates of the 5... | eleven year search for supernovae with the icecube neutrino observatory |
neutrinos from supernova (sn) bursts can give rise to detectable number of nuclear recoil (nr) events through the coherent elastic neutrino-nucleus scattering (ce$\nu$ns) process in large scale liquid xenon detectors designed for direct dark matter search, depending on the sn progenitor mass and distance. here we show ... | simulation of nuclear recoils due to supernova neutrino-induced neutrons in liquid xenon detectors |
the toolkit for high-order neutrino-radiation hydrodynamics (thornado) is being developed for simulations of core-collapse supernovae (ccsne) and related problems. current capabilities in thornado include solvers for the euler equations — in non-relativistic and special relativistic limits — and the two-moment model of... | thornado-hydro: towards discontinuous galerkin methods for supernova hydrodynamics |
the properties of massive protoneutron stars (pnss) are of great significance for the study of supernova and the evolution of neutron stars or black holes. the mass of the massive neutron star psr j1614-2230 is fitted by selecting the nuclear coupling constants and adjusting the hyperon coupling constants in the framew... | effects of trapped neutrinos on the composition and structure of massive protoneutron stars |
we calculate the stellar energy loss due to neutrino-pair production in e+e- annihilation in the context of a 331 model, a left-right symmetric model and a simplest little higgs model in a way that can be used in supernova calculations. we also present some simple estimates which show that such process can act as an ef... | stellar energy loss rates in the pair-annihilation process beyond the standard model |
most of the energy released in the gravitational collapse of the cores of massive stars is carried away by neutrinos. neutrinos play a pivotal role in explaining core-collape supernovae. currently, mathematical models of the gravitational collapse are based on multi-dimensional gas dynamics and thermonuclear reactions,... | large-scale instability during gravitational collapse with neutrino transport and a core-collapse supernova |
many galactic sources of gamma rays, such as supernova remnants, are expected to produce neutrinos with a typical energy cutoff well below 100 tev. for the icecube neutrino observatory located at the south pole, the southern sky, containing the inner part of the galactic plane and the galactic center, is a particularly... | neutrinos below 100 tev from the southern sky employing refined veto techniques to icecube data |
most of the energy released in the gravitational collapse of the cores of massive stars is carried away by neutrinos. neutrinos play a pivotal role in explaining core-collapse supernovae. in this work the multidimensional gas dynamics is used with neutrino transport in the flux-limited diffusion approximation to study ... | supernova explosion mechanism with the neutrinos and the collapse of the rotation core |
the effect of a magnetic field of arbitrary strength on the beta decay and crossing symmetric processes is analyzed. a covariant calculation technique is used to derive the expression for the squares of s-matrix elements of these reactions, which is also valid in reference frames in which the medium moves as a single w... | effect of magnetic field on beta processes in a relativistic moderately degenerate plasma |
the research on supernovae explosions is one of the most exciting fields in astrophysics. recent studies show that the electron capture and beta decay play key roles in supernovae explosions. in this paper, the half-lives of some iron group nuclei by β--decay are investigated due to shell effect, pair effect, and the c... | an estimate of the antineutrino energy loss by beta decay on strongly screening iron group nuclei in presupernova |
after considering supernova shock effects, mikheyev-smirnov-wolfenstein effects, neutrino collective effects, and earth matter effects, the detection of supernova neutrinos at the china spallation neutron source is studied and the expected numbers of different flavor supernova neutrinos observed through various reactio... | detection of supernova neutrinos at spallation neutron sources |
aims: this paper proposes a new approach to detecting 𝒪(mev) neutrino bursts such as those associated with supernovae.methods: a novel `real-time test statistic' (rts) exploits the temporal structure of the expected signal, discriminating against the diffuse background, to allow detection of very weak signals that wou... | identification of neutrino bursts associated to supernovae with real-time test statistic (rts2) method |
core-collapse supernovae produce copious low-energy neutrinos and are also predicted to radiate gravitational waves. these two messengers can give us information regarding the explosion mechanism. the gravitational wave detection from these events are still elusive even with the already advanced detectors. here we give... | joint analysis method on gravitational waves and low-energy neutrinos to detect core-collapse supernovae |
the destabilizing role of neutrino beams on the trivelpiece-gould modes is considered, assuming electrostatic perturbations in a magnetized plasma composed by electrons in a neutralizing ionic background, coupled to a neutrino species by means of an effective neutrino force arising from the electroweak interaction. the... | neutrino-driven electrostatic instabilities in a magnetized plasma |
we report preliminary results on the detection of the γ-rays from giant resonances of 16o and 12c nuclei from the experiment carried out at research center for nuclear physics osaka university. these γ-rays can be used to detect the μ and τ type neutrinos and anti-neutrinos, emitted from a core-collapse supernova, thro... | measurement of γ-rays from giant resonances of 16o and 12c with application to supernova neutrino detection |
the detection of the diffuse supernova neutrino background (dsnb) for the very first time and its difficulty due to the large irreducible backgrounds originally motivated the idea of adding gadolinium (gd) into the ultra-pure water of super-kamiokande (sk). since the main mode to detect the dsnb is through inverse beta... | egads approaching gadzooks! |
gamow-teller transitions in isotopes of chromium play a consequential role in the presupernova evolution of massive stars. β-decay and electron capture rates on chromium isotopes significantly affect the time rate of change of lepton fraction (dot{ye}). fine-tuning of this parameter is one of the key for simulating a s... | gamow-teller strength distributions and neutrino energy loss rates due to chromium isotopes in stellar matter |
we study the effects produced by interactions among neutrinos upon extra-galactic neutrino-fluxes. we have assumed a separable type of pair interactions and performed a transformation to a quasi-particle mean field followed by a tamm-damcoff diagonalization. in doing so, we have adopted techniques originated in the qua... | neutrino-pair interactions in astrophysical systems |
in this work, we examine the possibility of using the diffuse supernova neutrino background (dsnb) to test the chaplygin gas (cg) models of the universe. with a typical supernova rate rsn(z) and supernova neutrino spectrum dn(eν) / deν , the dsnb flux spectrum n(eν) in three categories of cg models, the generalized cg ... | constraining chaplygin models using diffuse supernova neutrino background |
a neutrino propagating through fluctuating matter can experience large amplitude transitions between its states. such transitions occur in supernovae and compact object mergers due to turbulent matter profiles and neutrino self-interactions. in this paper we study, both numerically and analytically, three-flavour neutr... | neutrino flavour evolution through fluctuating matter |
in dune, the event timing provided by the detection of the relatively prompt scintillation photons will improve spatial resolution in the drift direction of the time-projection chamber (tpc) and is especially useful for non-beam physics topics such as supernova neutrinos and nucleon decay. the baseline design for the f... | liquid argon scintillation detection utilizing wavelength-shifting plates and light guides |
in this talk, i first summarize our current knowledge about the fundamental properties of neutrinos and emphasize the remaining unsolved problems in neutrino physics. then, recent theoretical results on neutrino mass models are introduced. different approaches to understanding tiny neutrino masses, lepton flavor mixing... | theoretical results on neutrinos |
a neutrino propagating through fluctuating matter can experience large amplitude transitions between its states. such transitions occur in supernovae and compact object mergers due to turbulent matter profiles and neutrino self-interactions. in this paper we study, both numerically and analytically, three-flavour neutr... | neutrino flavour evolution through fluctuating matter |
in this presentation i summarize the main detection channels for neutrinos from core-collapse supernovae, and describe current status of and future prospects for supernova-neutrino-sensitive detectors worldwide. | supernova neutrino detection |
we study the evolution of neutrinos in a background matter moving with a linear acceleration. the dirac equation for a massive neutrino electroweakly interacting with background fermions is obtained in a comoving frame where matter is at rest. we solve this dirac equation for ultrarelativistic neutrinos. the neutrino q... | unruh effect for neutrinos interacting with accelerated matter |
we investigate the impact of a presumed axion-like-particle (alp) emission in a core-collapse supernova explosion on neutrino luminosities and mean energies employing a relatively simple analytic description. we compute the nuclear bremsstrahlung and primakoff axion luminosities as functions of the protoneutron star (p... | analytic approach to axion-like-particle emission in core-collapse supernovae |
a major challenge of particle physics is determining the neutrino mass ordering (mo). due to matter effects, the flavor content of the neutrino flux from a core-collapse supernova (ccsn) depends on the true neutrino mo resulting in markedly different energy and angle distributions for the measured lepton in water chere... | uncovering the neutrino mass ordering with the next galactic core-collapse supernova neutrino burst using water cherenkov detectors |
i present my minority view that the majority (or even all) of core collapse supernovae (ccsne) are driven by jets rather than by neutrinos, and that the majority of type ia supernovae (sn ia) reach their explosion via the core degenerate scenario. new simulations presented at the meeting did not achieve an explosion of... | a minority view on the majority: a personal meeting summary on the explosion mechanism of supernovae |
the inclusive neutrino/antineutrino-induced charged and neutral current reaction cross-sections in 12c, 16o, 40ar, 56fe and 208pb in the energy region of supernova neutrinos/antineutrinos are studied. the calculations are performed in the local density approximation (lda) taking into account the effects due to pauli bl... | neutrino-nucleus cross-sections at supernova neutrino energies |
core-collapse supernovae are vital as the birthplace of compact objects, where one expects various phases of the dense matter. the current status of supernova studies with the nuclear data for dense matter and neutrino reactions is overviewed with a focus on recent progress of the neutrino-radiation hydrodynamics in tw... | supernovae and neutron stars: playgrounds of dense matter and neutrinos |
the self-consistent problem of gravitational collapse is solved using 2d gas dynamics with taking into account the neutrino transfer in the flux-limited diffusion approximation. neutrino are described by spectral energy density, and weak interaction includes a simplified physical model of neutrino interactions with nuc... | a multidimensional multicomponent gas dynamic with the neutrino transfer in gravitational collapse |
in this paper, we calculate cross sections for charged-current neutrino-nucleus processes occuring under presupernova conditions. to treat thermal effects we extend self-consistent skyrme-qrpa calculations to finite temperature by using the formalism of thermo field dynamics. the numerical results are presented for the... | neutrino processes with hot nuclei in supernovae |
the next galactic core-collapse supernova will deliver a wealth of neutrinos which for the first time we are well-situated to measure. these explosions produce neutrinos with energies between 10 and 100 mev over a period of tens of seconds. galactic supernovae are relatively rare events, occurring with a frequency of j... | observing the next galactic supernova with the nova detectors |
the current status of the asd (artemovsk scintillation detector) experiment aimed at search for a neutrino flux from gravitational collapses of stellar cores is presented. experimental data obtained for 40 years of operation of the detector situated in a salt mine at a depth of 570 mwe are processed. the results obtain... | forty years to the artemovsk scintillation detector for neutrinos |
neutrinos are key particles in core-collapse supernovae. traveling unimpeded through the stellar core, neutrinos can be direct probes of the still uncertain and fascinating supernova mechanism. intriguing recent developments on the role of neutrinos during the stellar collapse are reviewed, as well as our current under... | supernova neutrinos: new challenges and future directions |
the fact that the spatial velocity of pulsars is generally higher than that of their progenitor stars has bothered astronomers for nearly 50 years. it has been extensively argued that the high pulsar velocity should be acquired during a natal kick process on a timescale of 100 ms-10 s in the supernova explosion, in whi... | neutrino rocket jet model: an explanation of high-velocity pulsars and their spin-down evolution |
we show that nonstandard neutrino self-interactions can lead to total flavor equipartition in a dense neutrino gas, such as those expected in core-collapse supernovae. in this first investigation of this phenomenon in the multiangle scenario, we demonstrate that such a flavor equipartition can occur on very short scale... | nonstandard neutrino self-interactions can cause neutrino flavor equipartition inside the supernova core |
online calibration of neutrino liquid scintillator detector at energies above 10 mev is very important for study of such rare process as supernova and for correct calculation of backgrounds if spectral properties is the focus of researches. the traditional procedure implies the usage of radioactive sources with well-kn... | online calibration of neutrino liquid scintillator detectors above 10 mev |
tension in the hubble constant (h_0) is reaching the point of no return, with nearly a dozen re-analyses and semi-independent measurements confirming that the present rate of cosmic expansion is faster than expected given early universe observations and the lambdacdm model. the most precise values of h_0 measured using... | tension at the breaking point: uncovering new physics through a two-rung distance ladder measurement of the hubble constant |
many galactic sources of gamma rays, such as supernova remnants, are expected to produce neutrinos with a typical energy cutoff well below 100 tev. for the icecube neutrino observatory located at the south pole, the southern sky, containing the inner part of the galactic plane and the galactic center, is a particularly... | neutrinos below 100 tev from the southern sky employing refined veto techniques to icecube data |
neutrinos play a key role in core-collapse supernova explosions. carrying information from deep inside the stellar core, neutrinos are direct probes of the supernova mechanism. intriguing recent developments on the role of neutrinos in supernovae are reviewed, as well as our current understanding of the flavor conversi... | supernova neutrinos: theory |
a possible mechanism for the formation of heavy-mass elements in supernovae is the rapid neutron-capture-mechanism (r-process). it depends upon the electron-fraction ye, a quantity which is determined by beta-decay-rates. in this paper, we focus on the calculation of electroweak decay-rates in presence of massive neutr... | neutrino mixing in nuclear rapid neutron-capture processes |
we consider scenario of the dark matter consisting of two fractions, stable part being dominant and a smaller unstable fraction, which has decayed after the recombination epoch. it has been suggested in ref. [1] that the above scenario may alleviate tension between high-redshift (cmb anisotropy) and low-redshift (cephe... | dark matter component decaying after recombination: constraints from diffuse gamma-ray and neutrino flux measurements |
the role of asymptotic giant branch (agb) stars in chemical enrichment is significant for producing 12,13c, 14n, f, 25,26mg, 17o and slow neutron-capture process (s-process) elements. the contribution from super-agb stars is negligible in classical, one-zone chemical evolution models, but the mass ranges can be constra... | the role of agb stars in galactic and cosmic chemical enrichment |
core-collapse supernovae, failed supernovae and quark novae are expected to release an energy of few 1053 ergs through mev neutrinos and a network of detectors is operative to look online for these events. however, when the source distance increases and/or the average energy of emitted neutrinos decreases, the signal s... | expanding core-collapse supernova search horizon of neutrino detectors |
we trained deep neural networks (dnns) as a function of the neutrino energy density, flux, and the fluid velocity to reproduce the eddington tensor for neutrinos obtained in our first-principles core-collapse supernova simulation. although the moment method, which is one of the most popular approximations for neutrino ... | deep learning of the eddington tensor in core-collapse supernova simulation |
providing an early warning of supernova burst neutrinos is of importance in studying both supernova dynamics and neutrino physics. the daya bay reactor neutrino experiment, with a unique feature of multiple liquid scintillator detectors, is sensitive to the full energy spectrum of supernova burst electron-antineutrinos... | highlight on supernova early warning at daya bay |
the gadzooks! project pursues the upgrade of the super-kamiokande detector as a way to efficiently detect thermal neutrons. inverse beta decay reactions, as well as charged current quasi-elastic (ccqe) scattering of low energy anti-neutrinos (up to a few hundreds of mev) in sk, produce one positron and one neutron in t... | status of gadzooks!: neutron tagging in super-kamiokande |
in this work we analyze the effects of quantum decoherence upon the precession of the neutrino polarization vector in a supernovae-like environment. in order to perform the study we have determined the time-dependence of the polarization vector by solving the equation of motion for different neutrino-mixing schemes. th... | decoherence-effects in the neutrino-mixing mechanism: active and sterile neutrinos in the three flavor scheme |
the physical ingredients and processes ruling the violent death of a massive star are reviewed, from the collapse of its core to the birth of a neutron star and the ejection of the stellar envelope. the crucial phase of this transition results from the complex interplay of many fields of physics: quantum physics, gravi... | explosion physics of core-collapse supernovae |
we present an implementation of icecube in the snowglobes package, which is used to calculate expected detection event rates resulting from supernova neutrinos. the snowglobes package is widely used to compare the sensitivity of different neutrino observatories, but currently does not include simulation files for icecu... | implementing icecube in snowglobes |
neutrinos from supernova (sn) bursts can give rise to detectable number of nuclear recoil (nr) events through the coherent elastic neutrino-nucleus scattering (ceυns) process in large scale liquid xenon detectors designed for direct dark matter search, depending on the sn progenitor mass and distance. here we show that... | simulation of nuclear recoils due to supernova neutrino-induced neutrons in liquid xenon detectors |
neutrinos in water can be detected thanks to several reactions. the most important one is the inverse beta decay bar nue + p → n + e+. the detection of 2.2 mev γ from neutron capture on free protons is very difficult. the feasibility of gadolinium (gd) doping in water cherenkov detectors essentially reduces background ... | supernova neutrino scattering off gadolinium even isotopes in water cherenkov detectors |
we study the effect of non-standard neutrino interactions (nsis) on the growth of instabilities in neutrino energy spectra of a core-collapse supernova for different neutrino intensities and/or types of nsis, notably including the exotic neutrino magnetic moment. although it is usually attested that instabilities virtu... | instabilities of collective neutrino oscillations induced by non-standard neutrino interactions |
weak interaction processes play an important role for the dynamics of a core-collapse supernova. due to progress of nuclear modeling and constrained by data it has been possible to improve the rates of these processes for supernova conditions decisively. this manuscript describes the recent advances and the current sta... | weak-interaction processes in core-collapse supernovae |
recent upgrades to the super-kamiokande neutrino observatory will allow it to trace the history of exploding stars. | gigantic japanese detector prepares to catch neutrinos from supernovae |
supernova neutrino bursts have been observed from extragalactic distances. this note addresses the question of how gravitational lensing could distort the information in the burst. we apply the gravitational lens hypothesis to try to understand the time and brightness structure of the sn1987a neutrino observations. est... | gravitational lensing of supernova neutrino bursts |
we present a methodical study of the thermal and nuclear properties for the hot nuclear matter using relativistic-mean field theory. we examine the effects of temperature on the binding energy, pressure, thermal index, symmetry energy, and its derivative for the symmetric nuclear matter using temperature-dependent rela... | thermal impacts on the properties of nuclear matter and young neutron star |
the tokai intermediate tank with unoscillated spectrum (titus) detector is a proposed addition to the hyper-kamiokande (hk) experiment located approximately 2 km from the j-parc neutrino beam. the design consists of a 2 kton gadolinium (gd) doped water cherenkov detector, surrounded by a magnetized iron detector design... | titus: an intermediate distance detector for the hyper-kamiokande neutrino beam |
it has recently been demonstrated analytically that the two-point correlation function for pairs of neutrinos may contain information about the size of the protoneutron star formed in a galactic core-collapse supernova. the information about the size of the source emerges via the neutrino equivalent of intensity interf... | feasibility of using neutrino intensity interferometry to measure protoneutron star radii |
most supernova theories state that this phenomenon lasts for a few seconds and ends with a big final explosion. however, these theories do not take into account several experimental results obtained with neutrino and gravitational wave detectors during the explosion of sn 1987a, the only supernova observed in a nearby ... | supernova 1987a, 30 years later |
supernova 1987a in the large magellanic cloud was the first naked-eye supernova since kepler's supernova in 1604. neutrino detections from the event dramatically confirmed the long-held belief that this type of supernova is triggered by the final collapse of the core of a massive star, but in many other respects it was... | the progenitor of sn 1987a |
registration of supernova neutrinos is one of the main goals of large underground neutrino detectors. we consider the possibility of using the large water veto tanks of future dark matter experiments as the additional facilities for supernova detection. simulations were performed for registration of cherenkov light in ... | supernova registration in water cherenkov veto of dark matter detectors |
calculations using astrophysical equations of state at low densities comparable to that of the neutrino emission surface in supernovae and accretion disks are confronted with experimental results from heavy ion collisions. an extension of previous work shows that it is important to include all of the measured experimen... | from femtonova to supernova: heavy-ion collisions and the supernova equation of state |
the interaction of the flux of electron neutrinos arising owing to the effect of the rotationalcollapse mechanism at the first stage of supernova burst with lsd components, such as 56fe (a large amount of this metal is contained in lsd as a shielding material) and c n h2 n+2 liquid scintillator, is investigated. both c... | iron as a detector for neutrinos from collapsing stars |
recently, first neutrino-driven supernova explosions have been obtained in 3d, self-consistent, first-principle simulations, these models are still not always exploding robustly and, in general, the explosions are not sufficiently energetic. to constrain the explosion mechanism, and the related uncertainties, it is thu... | the infancy of supernova remnants: evolving a supernova into its remnant in 3d |
in spite of its key role in compact star physics, the surface tension of quark matter is not well comprehended yet. in this work, we analyze the behavior of the surface tension of three flavor quark matter in the outer and inner core of cold deleptonized magnetars, proto magnetars born in core collapse supernovae, and ... | the role of quark matter surface tension in magnetars |
we make projections for measuring the black hole birth rate from the diffuse supernova neutrino background (dsnb) by future neutrino experiments, and constrain the black hole merger fraction epsilon, when combined with information on the black hole merger rate from gravitational wave experiments such as ligo. the dsnb ... | a "nu" look at gravitational waves: the black hole birth rate from neutrinos combined with the merger rate from ligo |
i review the state of investigation into the impact that nonspherical stellar progenitor structure has on the core-collapse supernova mechanism. although modeling stellar evolution relies on 1d spherically symmetric calculations, massive stars are not truly spherical. in the stellar evolution codes, this fact is accoun... | influence of non-spherical initial stellar structure on the core-collapse supernova mechanism |
a new neutrino magnetohydrodynamics (nmhd) model is formulated, where the effects of the charged weak current on the electron-ion magnetohydrodynamic fluid are taken into account. the model incorporates in a systematic way the role of the fermi neutrino weak force in magnetized plasmas. a fast neutrino-driven short wav... | neutrino magnetohydrodynamics |
we report on the push method for artificially triggering core-collapse supernova explosions of massive stars in spherical symmetry. the push method increases the energy deposition in the gain region proportionally to the heavy flavor neutrino fluxes.we summarize the parameter dependence of the method and calibrate push... | pushing core-collapse simulations to explosion |
the properties of the neutron star crust are crucially important for many physical processes occurring in the star. for instance, the crustal transport coefficients define the temperature evolution of accreting stars after bursts, which can be compared to observation. furthermore, the structure of the inner crust can m... | simulations of the neutron star crust |
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