Optical Studies of Seven Bright Southern Cataclysmic Variable Stars [PDF]
The Astronomical Journal, 2023 We report spectroscopic observations of seven bright southern cataclysmic variable stars, collected on a single two-week observing run using the 1.9 m Radcliffe telescope at the South African Astronomical Observatory.
John R. Thorstensen +4 more
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An Evenly Spaced LSST Cadence for Rapidly Variable Stars [PDF]
The Astrophysical Journal Supplement Series, 2023 Stars exhibit a bewildering variety of rapidly variable behaviors ranging from explosive magnetic flares to stochastically changing accretion to periodic pulsations or rotation.
Eric D. Feigelson +2 more
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Periodic variable A-F spectral type stars in the northern TESS continuous viewing zone [PDF]
Astronomy & Astrophysics, 2022 The goal of our study is to provide a reliable classification of variability of A-F stars brighter than 11 mag located in the northern TESS continuous viewing zone. We also aim at thorough discussion about issues in the classification related to the data
M. Skarka +13 more
openalex +3 more sources
The Zwicky Transient Facility Catalog of Periodic Variable Stars [PDF]
Astrophysical Journal Supplement Series, 2020 The number of known periodic variables has grown rapidly in recent years. Thanks to its large field of view and faint limiting magnitude, the Zwicky Transient Facility (ZTF) offers a unique opportunity to detect variable stars in the northern sky.
Xiaodian Chen +5 more
openalex +2 more sources
The ASAS-SN catalogue of variable stars – IV. Periodic variables in the APOGEE survey [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We explore the synergy between photometric and spectroscopic surveys by searching for periodic variable stars among the targets observed by the Apache Point Observatory Galactic Evolution Experiment (APOGEE) using photometry from the All-Sky Automated ...
M. Pawlak +14 more
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Wide-field Infrared Survey Explorer (WISE) Catalog of Periodic Variable Stars [PDF]
Astrophysical Journal Supplement Series, 2018 We have compiled the first all-sky mid-infrared variable-star catalog based on Wide-field Infrared Survey Explorer five-year survey data. Requiring more than 100 detections for a given object, 50,282 carefully and robustly selected periodic variables are
Xiaodian Chen +4 more
openalex +3 more sources
CHARACTERIZATION OF CoRoT TARGET FIELDS WITH BERLIN EXOPLANET SEARCH TELESCOPE. II. IDENTIFICATION OF PERIODIC VARIABLE STARS IN THE LRc2 FIELD [PDF]
, 2009 We report on photometric observations of the CoRoT LRc2 field with the new robotic Berlin Exoplanet Search Telescope II (BEST II). The telescope system was installed and commissioned at the Observatorio Cerro Armazones, Chile, in 2007. BEST II is a small
P. Kábath +10 more
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Minute-Cadence Observations of the LAMOST Fields with the TMTS: V. Machine Learning Classification of TMTS Catalogues of Periodic Variable Stars [PDF]
Monthly notices of the Royal Astronomical SocietyPeriodic variables are always of great scientific interest in astrophysics. Thanks to the rapid advancement of modern large-scale time-domain surveys, the number of reported variable stars has experienced substantial growth for several decades, which ...
Fangzhou Guo +19 more
openalex +3 more sources
Deep Generative Modeling of Periodic Variable Stars Using Physical Parameters [PDF]
Astronomical Journal, 2020 The ability to generate physically plausible ensembles of variable sources is critical to the optimization of time domain survey cadences and the training of classification models on data sets with few to no labels.
J. Mart'inez-Palomera +2 more
semanticscholar +1 more source
Sparse Logistic Regression for RR Lyrae versus Binaries Classification
The Astrophysical Journal, 2023 RR Lyrae (RRL) stars are old, low-mass, radially pulsating variable stars in their core helium burning phase. They are popular stellar tracers and primary distance indicators since they obey well-defined period–luminosity relations in the near-infrared ...
Piero Trevisan +6 more
doaj +1 more source