text stringlengths 89 2.49k | category stringclasses 19
values |
|---|---|
Modeling Results and Baseline Design for an RF-SoC-Based Readout System
for Microwave Kinetic Inductance Detectors: Building upon existing signal processing techniques and open-source software,
this paper presents a baseline design for an RF System-on-Chip Frequency
Division Multiplexed readout for a spatio-spectral ... | astro-ph_IM |
A superconducting focal plane array for ultraviolet, optical, and
near-infrared astrophysics: Microwave Kinetic Inductance Detectors, or MKIDs, have proven to be a
powerful cryogenic detector technology due to their sensitivity and the ease
with which they can be multiplexed into large arrays. A MKID is an energy
sen... | astro-ph_IM |
Light Curve Classification with DistClassiPy: a new distance-based
classifier: The rise of synoptic sky surveys has ushered in an era of big data in
time-domain astronomy, making data science and machine learning essential tools
for studying celestial objects. Tree-based (e.g. Random Forests) and deep
learning models... | astro-ph_IM |
A Bayesian method for the analysis of deterministic and stochastic time
series: I introduce a general, Bayesian method for modelling univariate time series
data assumed to be drawn from a continuous, stochastic process. The method
accommodates arbitrary temporal sampling, and takes into account measurement
uncertaint... | astro-ph_IM |
Bias-Free Estimation of Signals on Top of Unknown Backgrounds: We present a method for obtaining unbiased signal estimates in the presence
of a significant background, eliminating the need for a parametric model for
the background itself. Our approach is based on a minimal set of conditions for
observation and backgrou... | astro-ph_IM |
Arbitrary Transform Telescopes: The Generalization of Interferometry: The basic principle of astronomical interferometry is to derive the angular
distribution of radiation in the sky from the Fourier transform of the electric
field on the ground. What is so special about the Fourier transform? Nothing,
it turns out. I ... | astro-ph_IM |
The Rapid Imaging Planetary Spectrograph: The Rapid Imaging Planetary Spectrograph (RIPS) was designed as a long-slit
high-resolution spectrograph for the specific application of studying
atmospheres of spatially extended solar system bodies. With heritage in
terrestrial airglow instruments, RIPS uses an echelle gratin... | astro-ph_IM |
Experiments with calibrated digital sideband separating downconversion: This article reports on the first step in a focused program to re-optimize
radio astronomy receiver architecture to better take advantage of the latest
advancements in commercial digital technology. Specifically, an L-Band
sideband-separating downc... | astro-ph_IM |
A Lunar L2-Farside Exploration and Science Mission Concept with the
Orion Multi-Purpose Crew Vehicle and a Teleoperated Lander/Rover: A novel concept is presented in this paper for a human mission to the lunar
L2 (Lagrange) point that would be a proving ground for future exploration
missions to deep space while also ... | astro-ph_IM |
Optical capabilities of the Multichannel Subtractive Double Pass (MSDP)
for imaging spectroscopy and polarimetry at the Meudon Solar Tower: The Meudon Solar Tower (MST) is a 0.60 m telescope dedicated to spectroscopic
observations of solar regions. It includes a 14-meter focal length spectrograph
which offers high sp... | astro-ph_IM |
The small size telescope projects for the Cherenkov Telescope Array: The small size telescopes (SSTs), spread over an area of several square km,
dominate the CTA sensitivity in the photon energy range from a few TeV to over
100 TeV, enabling for the detailed exploration of the very high energy
gamma-ray sky. The propos... | astro-ph_IM |
The Footprint Database and Web Services of the Herschel Space
Observatory: Data from the Herschel Space Observatory is freely available to the public
but no uniformly processed catalogue of the observations has been published so
far. To date, the Herschel Science Archive does not contain the exact sky
coverage (footp... | astro-ph_IM |
The Chinese space millimeter-wavelength VLBI array - a step toward
imaging the most compact astronomical objects: The Shanghai Astronomical Observatory (SHAO) of the Chinese Academy of
Sciences (CAS) is studying a space VLBI (Very Long Baseline Interferometer)
program. The ultimate objective of the program is to imag... | astro-ph_IM |
Initial simulation study on high-precision radio measurements of the
depth of shower maximum with SKA1-low: As LOFAR has shown, using a dense array of radio antennas for detecting
extensive air showers initiated by cosmic rays in the Earth's atmosphere makes
it possible to measure the depth of shower maximum for indi... | astro-ph_IM |
The GLENDAMA Database: This is the first version (v1) of the Gravitational LENses and DArk MAtter
(GLENDAMA) database accessible at http://grupos.unican.es/glendama/database The
new database contains more than 6000 ready-to-use (processed) astronomical
frames corresponding to 15 objects that fall into three classes: (1... | astro-ph_IM |
Gammapy - A Python package for γ-ray astronomy: In the past decade imaging atmospheric Cherenkov telescope arrays such as
H.E.S.S., MAGIC, VERITAS, as well as the Fermi-LAT space telescope have
provided us with detailed images and spectra of the gamma-ray universe for the
first time. Currently the gamma-ray community i... | astro-ph_IM |
An investigation of lucky imaging techniques: We present an empirical analysis of the effectiveness of frame selection
(also known as Lucky Imaging) techniques for high resolution imaging. A
high-speed image recording system has been used to observe a number of bright
stars. The observations were made over a wide range... | astro-ph_IM |
Early Science Results from SOFIA, the World's Largest Airborne
Observatory: The Stratospheric Observatory For Infrared Astronomy, or SOFIA, is the
largest flying observatory ever built,consisting of a 2.7-meter diameter
telescope embedded in a modified Boeing 747-SP aircraft. SOFIA is a joint
project between NASA and... | astro-ph_IM |
Energy spectra of abundant cosmic-ray nuclei in the NUCLEON experiment: The NUCLEON satellite experiment is designed to directly investigate the
energy spectra of cosmic-ray nuclei and the chemical composition (Z=1-30) in
the energy range of 2-500 TeV. The experimental results are presented,
including the energy spectr... | astro-ph_IM |
Measurement errors and scaling relations in astrophysics: a review: This review article considers some of the most common methods used in
astronomy for regressing one quantity against another in order to estimate the
model parameters or to predict an observationally expensive quantity using
trends between object values... | astro-ph_IM |
The optical imager Galileo (OIG): The present paper describes the construction, the installation and the
operation of the Optical Imager Galileo (OIG), a scientific instrument
dedicated to the 'imaging' in the visible. OIG was the first instrument
installed on the focal plane of the Telescopio Nazionale Galileo (TNG) a... | astro-ph_IM |
VERITAS Telescope 1 Relocation: Details and Improvements: The first VERITAS telescope was installed in 2002-2003 at the Fred Lawrence
Whipple Observatory and was originally operated as a prototype instrument.
Subsequently the decision was made to locate the full array at the same site,
resulting in an asymmetric array ... | astro-ph_IM |
An Atmospheric Cerenkov Telescope Simulation System: A detailed numerical procedure has been developed to simulate the mechanical
configurations and optical properties of Imaging Atmospheric Cerenkov Telescope
systems. To test these procedures a few existing ACT arrays are simulated.
First results from these simulation... | astro-ph_IM |
The ASTROID Simulator Software Package: Realistic Modelling of
High-Precision High-Cadence Space-Based Imaging: The preparation of a space-mission that carries out any kind of imaging to
detect high-precision low-amplitude variability of its targets requires a
robust model for the expected performance of its instrume... | astro-ph_IM |
denmarf: a Python package for density estimation using masked
autoregressive flow: Masked autoregressive flow (MAF) is a state-of-the-art non-parametric density
estimation technique. It is based on the idea (known as a normalizing flow)
that a simple base probability distribution can be mapped into a complicated
targ... | astro-ph_IM |
SHIMM: A Versatile Seeing Monitor for Astronomy: Characterisation of atmospheric optical turbulence is crucial for the design
and operation of modern ground-based optical telescopes. In particular, the
effective application of adaptive optics correction on large and extremely
large telescopes relies on a detailed knowl... | astro-ph_IM |
Pan-STARRS Photometric and Astrometric Calibration: We present the details of the photometric and astrometric calibration of the
Pan-STARRS1 $3\pi$ Survey. The photometric goals were to reduce the systematic
effects introduced by the camera and detectors, and to place all of the
observations onto a photometric system w... | astro-ph_IM |
The Photometric LSST Astronomical Time-series Classification Challenge
(PLAsTiCC): Selection of a performance metric for classification
probabilities balancing diverse science goals: Classification of transient and variable light curves is an essential step in
using astronomical observations to develop an understan... | astro-ph_IM |
AstroInformatics: Recommendations for Global Cooperation: Policy Brief on "AstroInformatics, Recommendations for Global Collaboration",
distilled from panel discussions during S20 Policy Webinar on Astroinformatics
for Sustainable Development held on 6-7 July 2023.
The deliberations encompassed a wide array of topics... | astro-ph_IM |
Searching for Extraterrestrial Intelligence with the Square Kilometre
Array: The vast collecting area of the Square Kilometre Array (SKA), harnessed by
sensitive receivers, flexible digital electronics and increased computational
capacity, could permit the most sensitive and exhaustive search for
technologically-prod... | astro-ph_IM |
VISION: A Six-Telescope Fiber-Fed Visible Light Beam Combiner for the
Navy Precision Optical Interferometer: Visible-light long baseline interferometry holds the promise of advancing a
number of important applications in fundamental astronomy, including the direct
measurement of the angular diameters and oblateness o... | astro-ph_IM |
Errors, chaos and the collisionless limit: We simultaneously study the dynamics of the growth of errors and the question
of the faithfulness of simulations of $N$-body systems. The errors are
quantified through the numerical reversibility of small-$N$ spherical systems,
and by comparing fixed-timestep runs with differe... | astro-ph_IM |
Expectations on the mass determination using astrometric microlensing by
Gaia: Context. Astrometric gravitational microlensing can be used to determine the
mass of a single star (the lens) with an accuracy of a few percent. To do so,
precise measurements of the angular separations between lens and background
star wit... | astro-ph_IM |
Light curve completion and forecasting using fast and scalable Gaussian
processes (MuyGPs): Temporal variations of apparent magnitude, called light curves, are
observational statistics of interest captured by telescopes over long periods
of time. Light curves afford the exploration of Space Domain Awareness (SDA)
obj... | astro-ph_IM |
Radiative Cooling II: Effects of Density and Metallicity: This work follows Lykins et al. discussion of classic plasma cooling function
at low density and solar metallicity. Here we focus on how the cooling function
changes over a wide range of density (n_H<10^12 cm^(-3)) and metallicity (Z<30Z
_sun ). We find that hig... | astro-ph_IM |
The SKA and the Unknown Unknowns: As new scientists and engineers join the SKA project and as the pressures
come on to maintain costs within a chosen envelope it is worth restating and
updating the rationale for the 'Exploration of the Unknown' (EoU). Maintaining
an EoU philosophy will prove a vital ingredient for real... | astro-ph_IM |
Inviscid SPH: In smooth-particle hydrodynamics (SPH), artificial viscosity is necessary for
the correct treatment of shocks, but often generates unwanted dissipation away
from shocks. We present a novel method of controlling the amount of artificial
viscosity, which uses the total time derivative of the velocity diverg... | astro-ph_IM |
RAFTER: Ring Astrometric Field Telescope for Exo-planets and Relativity: High precision astrometry aims at source position determination to a very
small fraction of the diffraction image size, in high SNR regime. One of the
key limitations to such goal is the optical response variation of the telescope
over a sizeable ... | astro-ph_IM |
The Electromagnetic Characteristics of the Tianlai Cylindrical
Pathfinder Array: A great challenge for 21 cm intensity mapping experiments is the strong
foreground radiation which is orders of magnitude brighter than the 21cm
signal. Removal of the foreground takes advantage of the fact that its
frequency spectrum is... | astro-ph_IM |
A fast 2D image reconstruction algorithm from 1D data for the Gaia
mission: A fast 2-dimensional image reconstruction method is presented, which takes as
input 1-dimensional data acquired from scans across a central source in
different orientations. The resultant reconstructed images do not show
artefacts due to non-... | astro-ph_IM |
Basic Survey Scheduling for the Wide Field Survey Telescope (WFST): Aiming at improving the survey efficiency of the Wide Field Survey Telescope,
we have developed a basic scheduling strategy that takes into account the
telescope characteristics, observing conditions, and weather conditions at the
Lenghu site. The sky ... | astro-ph_IM |
Baryon acoustic oscillations from Integrated Neutral Gas Observations:
Broadband corrugated horn construction and testing: The Baryon acoustic oscillations from Integrated Neutral Gas Observations
(BINGO) telescope is a 40-m~class radio telescope under construction that has
been designed to measure the large-angular-... | astro-ph_IM |
Hi-fi phenomenological description of eclipsing binary light variations
as the basis for their period analysis: In-depth analysis of eclipsing binary (EB) observational data collected for
several decades can inform us about a lot of astrophysically interesting
processes taking place in the systems. We have developed ... | astro-ph_IM |
Calibration database for the Murchison Widefield Array All-Sky Virtual
Observatory: We present a calibration component for the Murchison Widefield Array All-Sky
Virtual Observatory (MWA ASVO) utilising a newly developed PostgreSQL database
of calibration solutions. Since its inauguration in 2013, the MWA has recorded... | astro-ph_IM |
Polarimetric characterization of segmented mirrors: We study the impact of the loss of axial symmetry around the optical axis on
the polarimetric properties of a telescope with segmented primary mirror when
each segment is present in a different aging stage. The different oxidation
stage of each segment as they are sub... | astro-ph_IM |
Simulation and Analysis Chain for Acoustic Ultra-high Energy Neutrino
Detectors in Water: Acousticneutrinodetectionisapromisingapproachforlarge-scaleultra-highenergyneutrinodetectorsinwater.In
this article, a Monte Carlo simulation chain for acoustic neutrino detection
devices in water will be presented. The simulati... | astro-ph_IM |
A new method of CCD dark current correction via extracting the dark
information from scientific images: We have developed a new method to correct dark current at relatively high
temperatures for Charge-Coupled Device (CCD) images when dark frames cannot be
obtained on the telescope. For images taken with the Antarcti... | astro-ph_IM |
Exploiting the geomagnetic distortion of the inclined atmospheric
showers: We propose a novel approach for the determination of the nature of ultra-high
energy cosmic rays by exploiting the geomagnetic deviation of muons in nearly
horizontal showers. The distribution of the muons at ground level is well
described by ... | astro-ph_IM |
Astrometric and photometric standard candidates for the upcoming 4-m
ILMT survey: The International Liquid Mirror Telescope (ILMT) is a 4-meter class survey
telescope that has recently achieved first light and is expected to swing into
full operations by 1st January 2023. It scans the sky in a fixed 22' wide strip
ce... | astro-ph_IM |
The AstroSat Observatory: AstroSat is India's first Ultra-violet (UV) and X-ray astronomy observatory
in space. The satellite was launched by the Indian Space Research Organisation
on a Polar Satellite Launch Vehicle on 28 September 2015 from Sriharikota Range
north of Chennai on the eastern coast of India. AstroSat ca... | astro-ph_IM |
Recovering simulated planet and disk signals using SCALES aperture
masking: The Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy
(SCALES) instrument is a lenslet-based integral field spectrograph that will
operate at 2 to 5 microns, imaging and characterizing colder (and thus older)
planets than curr... | astro-ph_IM |
Spatial intensity interferometry on three bright stars: The present articlereports on the first spatial intensity interferometry
measurements on stars since the observations at Narrabri Observatory by Hanbury
Brown et al. in the 1970's. Taking advantage of the progresses in recent years
on photon-counting detectors and... | astro-ph_IM |
Overview of lunar detection of ultra-high energy particles and new plans
for the SKA: The lunar technique is a method for maximising the collection area for
ultra-high-energy (UHE) cosmic ray and neutrino searches. The method uses
either ground-based radio telescopes or lunar orbiters to search for Askaryan
emission ... | astro-ph_IM |
High-resolution wide-band Fast Fourier Transform spectrometers: We describe the performance of our latest generations of sensitive wide-band
high-resolution digital Fast Fourier Transform Spectrometer (FFTS). Their
design, optimized for a wide range of radio astronomical applications, is
presented. Developed for operat... | astro-ph_IM |
The ADS All-Sky Survey: The ADS All-Sky Survey (ADSASS) is an ongoing effort aimed at turning the
NASA Astrophysics Data System (ADS), widely known for its unrivaled value as a
literature resource for astronomers, into a data resource. The ADS is not a
data repository per se, but it implicitly contains valuable holding... | astro-ph_IM |
Modern middleware for the data acquisition of the Cherenkov Telescope
Array: The data acquisition system (DAQ) of the future Cherenkov Telescope Array
(CTA) must be ef- ficient, modular and robust to be able to cope with the very
large data rate of up to 550 Gbps coming from many telescopes with different
characteris... | astro-ph_IM |
Geostationary Antenna for Disturbance-Free Laser Interferometry (GADFLI): We present a mission concept, the Geostationary Antenna for Disturbance-Free
Laser Interferometry (GADFLI), for a space-based gravitational-wave
interferometer consisting of three satellites in geostationary orbit around the
Earth. Compared to th... | astro-ph_IM |
Betelgeuse scope: Single-mode-fibers-assisted optical interferometer
design for dedicated stellar activity monitoring: Betelgeuse has gone through a sudden shift in its brightness and dimmed
mysteriously. This is likely caused by a hot blob of plasma ejected from
Betelgeuse and then cooled to obscuring dust. If true,... | astro-ph_IM |
STARFORGE: Toward a comprehensive numerical model of star cluster
formation and feedback: We present STARFORGE (STAR FORmation in Gaseous Environments): a new
numerical framework for 3D radiation MHD simulations of star formation that
simultaneously follow the formation, accretion, evolution, and dynamics of
individu... | astro-ph_IM |
The Simons Observatory: A fully remote controlled calibration system
with a sparse wire grid for cosmic microwave background telescopes: For cosmic microwave background (CMB) polarization observations, calibration
of detector polarization angles is essential. We have developed a fully remote
controlled calibration sy... | astro-ph_IM |
Ground Layer Adaptive Optics: PSF effects on ELT scales: On certain extent the behavior of the Adaptive Optics correction for
Extremely Large Telescope scales with diameter size. But in Ground Layer
Adaptive Optics the combined effect of a Large Field of View and the large
overlap of Guide Stars pupil footprints at hig... | astro-ph_IM |
The Generalized Spectral Kurtosis Estimator: Due to its conceptual simplicity and its proven effectiveness in real-time
detection and removal of radio frequency interference (RFI) from radio
astronomy data, the Spectral Kurtosis (SK) estimator is likely to become a
standard tool of a new generation of radio telescopes.... | astro-ph_IM |
An Information Theory Approach on Deciding Spectroscopic Follow Ups: Classification and characterization of variable phenomena and transient
phenomena are critical for astrophysics and cosmology. These objects are
commonly studied using photometric time series or spectroscopic data. Given
that many ongoing and future s... | astro-ph_IM |
Robust dimensionality reduction for interferometric imaging of Cygnus A: Extremely high data rates expected in next-generation radio interferometers
necessitate a fast and robust way to process measurements in a big data
context. Dimensionality reduction can alleviate computational load needed to
process these data, in... | astro-ph_IM |
Tidal Accelerometry: Exploring the Cosmos Via Gravitational Correlations: Newtonian gravitation is non-radiative but is extremely pervasive and
penetrates equally into every media because it cannot be shielded. The extra
terrestrial fgravity is responsible for earth's trajectory. However its
correlation or geodesic dev... | astro-ph_IM |
The miniJPAS Survey: A Study on Wavelength Dependence of the Photon
Response Non-uniformity of the JPAS-{\it Pathfinder} Camera: Understanding the origins of small-scale flats of CCDs and their
wavelength-dependent variations plays an important role in high-precision
photometric, astrometric, and shape measurements o... | astro-ph_IM |
Forward Global Photometric Calibration of the Dark Energy Survey: Many scientific goals for the Dark Energy Survey (DES) require calibration of
optical/NIR broadband $b = grizY$ photometry that is stable in time and uniform
over the celestial sky to one percent or better. It is also necessary to limit
to similar accura... | astro-ph_IM |
Cosmic-CoNN: A Cosmic Ray Detection Deep-Learning Framework, Dataset,
and Toolkit: Rejecting cosmic rays (CRs) is essential for the scientific interpretation of
CCD-captured data, but detecting CRs in single-exposure images has remained
challenging. Conventional CR detectors require experimental parameter tuning
for ... | astro-ph_IM |
Interoperable geographically distributed astronomical infrastructures:
technical solutions: The increase of astronomical data produced by a new generation of
observational tools poses the need to distribute data and to bring computation
close to the data. Trying to answer this need, we set up a federated data and
com... | astro-ph_IM |
Ultra High Molecular Weight Polyethylene: optical features at millimeter
wavelengths: The next generation of experiments for the measurement of the Cosmic
Microwave Background (CMB) requires more and more the use of advanced
materials, with specific physical and structural properties. An example is the
material used ... | astro-ph_IM |
EZ: A Tool for Automatic Redshift Measurement: We present EZ (Easy redshift), a tool we have developed within the VVDS
project to help in redshift measurement from otpical spectra. EZ has been
designed with large spectroscopic surveys in mind, and in its development
particular care has been given to the reliability of ... | astro-ph_IM |
Toward a large bandwidth photonic correlator for infrared heterodyne
interferometry: Infrared heterodyne interferometry has been proposed as a practical
alternative for recombining a large number of telescopes over kilometric
baselines in the mid-infrared. However, the current limited correlation
capacities impose st... | astro-ph_IM |
A novel method for the absolute energy calibration of large-scale
cosmic-ray detectors using radio emission of extensive air showers: Ultra-high energy cosmic rays impinging onto the atmosphere induce huge
cascades of secondary particles. The measurement of the energy radiated by
these air showers in form of radio wa... | astro-ph_IM |
Fiber modal noise mitigation by a rotating double scrambler: Fiber modal noise is a performance limiting factor in high-resolution
spectroscopy, both with respect to achieving high signal-to-noise ratios or
when targeting high-precision radial velocity measurements, with multi-mode
fiber-fed high-resolution spectrograp... | astro-ph_IM |
Point-spread function ramifications and deconvolution of a signal
dependent blur kernel due to interpixel capacitive coupling: Interpixel capacitance (IPC) is a deterministic electronic coupling that
results in a portion of the collected signal incident on one pixel of a
hybridized detector array being measured in ad... | astro-ph_IM |
The Physics of the Accelerating Universe Camera: The PAU (Physics of the Accelerating Universe) Survey goal is to obtain
photometric redshifts (photo-z) and Spectral Energy Distribution (SED) of
astronomical objects with a resolution roughly one order of magnitude better
than current broad band photometric surveys. To ... | astro-ph_IM |
The KISS experiment: Mapping millimetre continuum emission has become a key issue in modern
multi-wavelength astrophysics. In particular, spectrum-imaging at low frequency
resolution is an asset for characterizing the clusters of galaxies via the
Sunyaev Zeldovich (SZ) effect. In this context, we have built a ground-ba... | astro-ph_IM |
Investigation of infrasound noise background at Mátra Gravitational
and Geophysical Laboratory (MGGL): Infrasonic and seismic waves are supposed to be the main contributors to the
gravity-gradient noise (Newtonian noise) of the third generation subterranean
gravitational-wave detectors. This noise will limit the sens... | astro-ph_IM |
Removing Internal Reflections from Deep Imaging Datasets: We present a means of characterizing and removing internal reflections
between the CCD and other optical surfaces in an astronomical camera. The
stellar reflections appear as out-of-focus images and are not necessarily
axisymmetric about the star. Using long exp... | astro-ph_IM |
Performance of the ARIANNA Hexagonal Radio Array: Installation of the ARIANNA Hexagonal Radio Array (HRA) on the Ross Ice Shelf
of Antarctica has been completed. This detector serves as a pilot program to
the ARIANNA neutrino telescope, which aims to measure the diffuse flux of very
high energy neutrinos by observing t... | astro-ph_IM |
The Largest Russian Optical Telescope BTA: Current Status and
Modernization Prospects: The Russian 6-m telescope (BTA), once the largest telescope in the world and
now the largest optical telescope in Russia, has been successfully operating
for almost 45 years. In this paper we briefly overview the observing methods
... | astro-ph_IM |
Data reduction for the MATISSE instrument: We present in this paper the general formalism and data processing steps used
in the MATISSE data reduction software, as it has been developed by the MATISSE
consortium. The MATISSE instrument is the mid-infrared new generation
interferometric instrument of the Very Large Tele... | astro-ph_IM |
Ideas for Citizen Science in Astronomy: We review the relatively new, internet-enabled, and rapidly-evolving field of
citizen science, focusing on research projects in stellar, extragalactic and
solar system astronomy that have benefited from the participation of members of
the public, often in large numbers. We find t... | astro-ph_IM |
Spectrograph design for the Asgard/BIFROST spectro-interferometric
instrument for the VLTI: The BIFROST instrument will be the first VLTI instrument optimised for high
spectral resolution up to R=25,000 and operate between 1.05 and 1.7 $\mu$m. A
key component of the instrument will be the spectrograph, where we requi... | astro-ph_IM |
Prediction on detection and characterization of Galactic disk
microlensing events by LSST: Upcoming LSST survey gives an unprecedented opportunity for studying
populations of intrinsically faint objects using microlensing technique. Large
field of view and aperture allow effective time-series observations of many
sta... | astro-ph_IM |
Evaluating the efficacy of sonification for signal detection in
univariate, evenly sampled light curves using astronify: Sonification is the technique of representing data with sound, with potential
applications in astronomy research for aiding discovery and accessibility.
Several astronomy-focused sonification tools... | astro-ph_IM |
A high precision technique to correct for residual atmospheric
dispersion in high-contrast imaging systems: Direct detection and spectroscopy of exoplanets requires high contrast
imaging. For habitable exoplanets in particular, located at small angular
separation from the host star, it is crucial to employ small inne... | astro-ph_IM |
On the coherence loss in phase-referenced VLBI observations: Context: Phase referencing is a standard calibration technique in radio
interferometry, particularly suited for the detection of weak sources close to
the sensitivity limits of the interferometers. However, effects from a changing
atmosphere and inaccuracies ... | astro-ph_IM |
Optimization of an Optical Testbed for Characterization of EXCLAIM
u-Spec Integrated Spectrometers: We describe a testbed to characterize the optical response of compact
superconducting on-chip spectrometers in development for the Experiment for
Cryogenic Large-Aperture Intensity Mapping (EXCLAIM) mission. EXCLAIM is... | astro-ph_IM |
Characterization of Skipper CCDs for Cosmological Applications: We characterize the response of a novel 250 $\mu$m thick, fully-depleted
Skipper Charged-Coupled Device (CCD) to visible/near-infrared light with a
focus on potential applications for astronomical observations. We achieve
stable, single-electron resolution... | astro-ph_IM |
The Possible Detection of Dark Energy on Earth Using Atom Interferometry: This paper describes the concept and the beginning of an experimental
investigation of whether it is possible to directly detect dark energy density
on earth using atom interferometry. The concept is to null out the
gravitational force using a do... | astro-ph_IM |
Deformable mirror-based pupil chopping for exoplanet imaging and
adaptive optics: Due to turbulence in the atmosphere images taken from ground-based telescopes
become distorted. With adaptive optics (AO) images can be given greater clarity
allowing for better observations with existing telescopes and are essential fo... | astro-ph_IM |
Collision-free motion planning for fiber positioner robots:
discretization of velocity profiles: The next generation of large-scale spectroscopic survey experiments such as
DESI, will use thousands of fiber positioner robots packed on a focal plate. In
order to maximize the observing time with this robotic system we ... | astro-ph_IM |
Gaia space mission and quasars: Quasars are often considered to be point-like objects. This is largely true
and allows for an excellent alignment of the optical positional reference frame
of the ongoing ESA mission Gaia with the International Celestial Reference
Frame. But presence of optical jets in quasars can cause ... | astro-ph_IM |
Adapting astronomical source detection software to help detect animals
in thermal images obtained by unmanned aerial systems: In this paper we describe an unmanned aerial system equipped with a
thermal-infrared camera and software pipeline that we have developed to monitor
animal populations for conservation purposes... | astro-ph_IM |
The High Inclination Solar Mission: The High Inclination Solar Mission (HISM) is a concept for an
out-of-the-ecliptic mission for observing the Sun and the heliosphere. The
mission profile is largely based on the Solar Polar Imager concept: initially
spiraling in to a 0.48 AU ecliptic orbit, then increasing the orbital... | astro-ph_IM |
Removing visual bias in filament identification: a new goodness-of-fit
measure: Different combinations of input parameters to filament identification
algorithms, such as Disperse and FilFinder, produce numerous different output
skeletons. The skeletons are a one pixel wide representation of the filamentary
structure ... | astro-ph_IM |
Viewpoints: A high-performance high-dimensional exploratory data
analysis tool: Scientific data sets continue to increase in both size and complexity. In the
past, dedicated graphics systems at supercomputing centers were required to
visualize large data sets, but as the price of commodity graphics hardware has
dropp... | astro-ph_IM |
Overview of the Instrumentation for the Dark Energy Spectroscopic
Instrument: The Dark Energy Spectroscopic Instrument (DESI) has embarked on an ambitious
five-year survey to explore the nature of dark energy with spectroscopy of 40
million galaxies and quasars. DESI will determine precise redshifts and employ
the Ba... | astro-ph_IM |
Generating artificial light curves: Revisited and updated: The production of artificial light curves with known statistical and
variability properties is of great importance in astrophysics. Consolidating
the confidence levels during cross-correlation studies, understanding the
artefacts induced by sampling irregularit... | astro-ph_IM |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.