Results 21 to 30 of about 377 (60)
Automatic Parallel Tempering Markov Chain Monte Carlo with Nii-C
The Astrophysical Journal Supplement SeriesDue to the high dimensionality or multimodality that is common in modern astronomy, sampling Bayesian posteriors can be challenging. Several publicly available codes based on different sampling algorithms can solve these complex models, but the execution
Sheng Jin, Wenxin Jiang, Dong-Hong Wu
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The Astrophysical Journal Supplement SeriesThe observing strategy (OS) of an astronomical survey influences the degree to which its resulting data can be used to accomplish any science goal, necessitating upcoming programs, including those on the Rubin and Roman telescopes, to solicit metrics in ...
Alex I. Malz +4 more
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The Astrophysical JournalData Release 3 (DR3) from the Gaia Mission includes radial velocity measurements of over 33 million targets. Among many scientific applications, the overlap of this stellar sample with targeted exoplanet transit survey stars presents an opportunity to ...
Quadry Chance +5 more
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SZ and CMB reconstruction using Generalized Morphological Component Analysis
, 2007 In the last decade, the study of cosmic microwave background (CMB) data has become one of the most powerful tools to study and understand the Universe.
Bennett +17 more
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Designing an Optimal Kilonova Search Using DECam for Gravitational-wave Events
The Astrophysical JournalWe address the problem of optimally identifying all kilonovae detected via gravitational-wave emission in the upcoming LIGO/Virgo/KAGRA observing run, O4, which is expected to be sensitive to a factor of ∼7 more binary neutron star (BNS) alerts than ...
C. R. Bom +69 more
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Bayesian Methods for Analysis and Adaptive Scheduling of Exoplanet Observations
, 2018 We describe work in progress by a collaboration of astronomers and statisticians developing a suite of Bayesian data analysis tools for extrasolar planet (exoplanet) detection, planetary orbit estimation, and adaptive scheduling of observations. Our work
Balan +28 more
core +1 more source
, 2009 We present a new approach to the analysis of time symmetry in light curves, such as those in the x-ray at the center of the Scorpius X-1 occultation debate.
Alexander W. Blocker +14 more
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Diffuse X-Ray Emission in M51: A Hierarchical Bayesian Spatially Resolved Spectral Analysis
The Astrophysical JournalX-ray observations can be used to effectively probe the galactic ecosystem, particularly its hot and energetic components. However, existing X-ray studies of nearby star-forming galaxies are limited by insufficient data statistics and a lack of suitable ...
Luan Luan, Q. Daniel Wang
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Detecting Stellar Flares in Photometric Data Using Hidden Markov Models
The Astrophysical JournalWe present a hidden Markov model (HMM) for discovering stellar flares in light-curve data of stars. HMMs provide a framework to model time series data that are nonstationary; they allow for systems to be in different states at different times and ...
J. Arturo Esquivel +7 more
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Radio pulsar binaries in globular clusters: their orbital eccentricities and stellar interactions
, 2009 High sensitivity searches of globular clusters (GC) for radio pulsars by improved pulsar search algorithms and sustained pulsar timing observations have so far yielded some 140 pulsars in more than two dozen GCs.
Alak Ray +24 more
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