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A Distinct Type of Standstill in Ultra-Compact White Dwarf Binaries
Jan Kára, Liliana Rivera Sandoval, Iwona Kotko +3
AM CVn stars are ultra-compact, semi-detached binaries consisting of a white dwarf primary and a hydrogen-poor secondary. In this work, we analyse the AM CVn-type systems MGAB-V270…
COPAS: Compact Objects and the Physics of Accretion Survey I. Accreting Binaries with P < 83 Minutes
Wendy Mendoza, Liliana Rivera Sandoval, Jan Kára +9
We present the first results from the Compact Objects and the Physics of Accretion Survey (COPAS), a high-cadence photometric survey focused on the detection of accreting white dwa…
A Catalogue of Orbital Periods of Cataclysmic Variables and Candidates from TESS Observations
Meryem K. Dağ, Simone Scaringi, Kieran O'Brien +21
We present a systematic analysis of 2544 cataclysmic variable systems and related candidates observed by the Transiting Exoplanet Survey Satellite (TESS), with the aim of compiling…
A study of transients from ground-based surveys reveals new ultra-compact accreting white dwarf binaries
Jan Kára, Liliana Rivera Sandoval, Wendy Mendoza +5
AM CVn stars are ultra-compact semi-detached binaries consisting of a white dwarf primary and a hydrogen-depleted secondary. In this paper we present spectroscopic and photometric…
The eclipse of the V773 Tau B circumbinary disk
M. A. Kenworthy, D. González Picos, E. Elizondo +9
A deep (~70%) and extended (~150 days) eclipse was seen towards the young multiple stellar system V773 Tau in 2010. We interpret it as due to the passage of a circumbinary disk aro…
SpinSpotter: An Automated Algorithm for Identifying Stellar Rotation Periods With Autocorrelation Analysis
Rae J. Holcomb, Paul Robertson, Patrick Hartigan +2
Spinspotter is a robust and automated algorithm designed to extract stellar rotation periods from large photometric datasets with minimal supervision. Our approach uses the autocor…
H-band light curves of Milky Way Cepheids via Difference Imaging
Tarini Konchady, Ryan J. Oelkers, David O. Jones +4
We present H-band light curves of Milky Way Classical Cepheids observed as part of the DEHVILS survey with the Wide-Field Infrared Camera on the United Kingdom InfraRed Telescope.…
The Revised TESS Input Catalog and Candidate Target List
Keivan G. Stassun, Ryan J. Oelkers, Martin Paegert +33
We describe the catalogs assembled and the algorithms used to populate the revised TESS Input Catalog (TIC), based on the incorporation of the Gaia second data release. We also des…
Identification of Young Stellar Variables with KELT for K2 II: The Upper Scorpius Association
Megan Ansdell, Ryan J. Oelkers, Joseph E. Rodriguez +13
High-precision photometry from space-based missions such as K2 and TESS enables detailed studies of young star variability. However, because space-based observing campaigns are oft…
Identification of Young Stellar Variables with KELT for K2 I: Campaign 13 Taurus Dippers and Rotators
Joseph E. Rodriguez, Megan Ansdell, Ryan J. Oelkers +13
One of the most well-studied young stellar associations, Taurus-Auriga, will be observed by the extended Kepler mission, K2, in the spring of 2017. K2 Campaign 13 (C13) will be a u…
Gaia Assorted Mass Binaries Long Excluded from SLoWPoKES (GAMBLES): Identifying Ultra-Wide Binary Pairs with Components of Diverse Mass
Ryan J. Oelkers, Keivan G. Stassun, Saurav Dhital
The formation and evolution of binary star systems still remain key questions in modern astronomy. Wide binary pairs (separations AU) are particularly intriguing because th…
A Wide-Field Survey for Transiting Hot Jupiters and Eclipsing Pre-Main-Sequence Binaries in Young Stellar Associations
Ryan J. Oelkers, Lucas M. Macri, Jennifer L. Marshall +4
The past two decades have seen a significant advancement in the detection, classification and understanding of exoplanets and binaries. This is due, in large part, to the increase…
Stellar Variability and Flare Rates from Dome A, Antarctica using 2009 and 2010 CSTAR Observations
Ryan J. Oelkers, Lucas M. Macri, Lifan Wang +12
The Chinese Small Telescope ARray (CSTAR) carried out high-cadence time-series observations of 20.1 square degrees centered on the South Celestial Pole during the 2008, 2009 & 2010…
Difference Image Analysis of Defocused Observations with CSTAR
Ryan J. Oelkers, Lucas M. Macri, Lifan Wang +13
The Chinese Small Telescope ARray (CSTAR) carried out high-cadence time-series observations of 27 square degrees centered on the South Celestial Pole during the Antarctic winter se…
The K2-TESS Stellar Properties Catalog
Keivan G. Stassun, Joshua A. Pepper, Ryan Oelkers +3
We introduce a catalog of stellar properties for stars observed by the Kepler follow-on mission, K2. We base the catalog on a cross-match between the K2 Campaign target lists and t…