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Next-generation synoptic photometric surveys will yield unprecedented (for the astronomical community) volumes of data and the processes of discovery and rare-object identification are, by necessity, becoming more autonomous. Such…

Solar and Stellar Astrophysics · Physics 2014-04-08 Isaac Shivvers , Joshua S. Bloom , Joseph W. Richards

Detached eclipsing binary stars (dEBs) are a key source of data on fundamental stellar parameters. While there is a vast source of candidate systems in the light curve databases of survey missions such as Kepler and TESS, published…

Solar and Stellar Astrophysics · Physics 2025-02-18 Stephen Overall , John Southworth

We present a detailed light curve analysis of publicly available V band observations of 62 binary stars, mostly contact binaries, obtained by the All Sky Automated Survey (ASAS)-3 project between 2000 and 2009. Eclipsing binaries are…

Solar and Stellar Astrophysics · Physics 2015-05-20 Sukanta Deb , Harinder P. Singh

We present the discovery of \thisstar\ (HD 58730), a very low mass ratio ($q \equiv M_2/M_1 \approx 0.07$) eclipsing binary (EB) identified by the Kilodegree Extremely Little Telescope (KELT) survey. We present the discovery light curve and…

Low-mass stars in eclipsing binary systems show radii larger and effective temperatures lower than theoretical stellar models predict for isolated stars with the same masses. Eclipsing binaries with low-mass components are hard to find due…

We have developed a procedure for the classification of eclipsing binaries from their light-curve parameters and spectral type. The procedure was tested on more than 1000 systems with known classification, and its efficiency was estimated…

Solar and Stellar Astrophysics · Physics 2014-09-09 Ekaterina Avvakumova , Oleg Malkov

The combined strength of asteroseismology and empirical stellar basic parameter determinations for in-depth asteroseismic analysis of massive pulsators in eclipsing binaries shows great potential for treating the challenging and mysterious…

Solar and Stellar Astrophysics · Physics 2024-03-20 Christian I. Eze , Gerald Handler

We derive the absolute physical and orbital parameters for a sample of 18 detached eclipsing binaries from the \emph{All Sky Automated Survey} (ASAS) database based on the available photometry and our own radial velocity measurements. The…

Solar and Stellar Astrophysics · Physics 2015-05-14 K. G. Hełminiak , M. Konacki , M. Ratajczak , M. Muterspaugh

The O'Connell effect is a phenomenon in eclipsing binary (EB) systems that consists of unequal maxima in a light curve when out of eclipse. Despite being known for decades and with several theories proposed over the years, this effect is…

Solar and Stellar Astrophysics · Physics 2025-06-25 D. Flores Cabrera , M. Catelan , A. Papageorgiou , A. Clocchiatti

We present our second catalog of quadruple star candidates, containing 101 systems discovered in TESS Full-Frame Image data. The targets were initially detected as eclipsing binary stars with the help of supervised machine learning methods…

Eclipsing binaries provide a unique opportunity to determine fundamental stellar properties. In the era of wide-field cameras and all-sky imaging surveys, thousands of eclipsing binaries have been reported through light curve…

Solar and Stellar Astrophysics · Physics 2017-02-22 Chien-Hsiu Lee , Chien-Cheng Lin

Context. Intermediate- to high-mass stars are the least numerous types of stars and they are less well understood than their more numerous low-mass counterparts in terms of their internal physical processes. Modelling the photometric…

Solar and Stellar Astrophysics · Physics 2021-08-25 Luc W. IJspeert , Andrew Tkachenko , Cole Johnston , Stefano Garcia , Joris De Ridder , Timothy Van Reeth , Conny Aerts

The observed light curves of most eclipsing binaries and stars with transiting planets can be well described and interpreted by current advanced physical models which also allow for the determination of many physical parameters of eclipsing…

Instrumentation and Methods for Astrophysics · Physics 2015-11-18 Zdeněk Mikulášek

We presented the first photometric light curve solutions of four W Ursae Majoris (W UMa)-type contact binary systems. This investigation utilized photometric data from the Transiting Exoplanet Survey Satellite (TESS) and Gaia Data Release 3…

Solar and Stellar Astrophysics · Physics 2025-02-20 Atila Poro , Razieh Aliakbari , Hossein Azarara , Asma Ababafi , Sadegh Nasirian

We present the results of our spectroscopic and photometric analysis of two newly discovered low-mass detached eclipsing binaries found in the All-Sky Automated Survey (ASAS) catalogue: ASAS J093814-0104.4 and ASAS J212954-5620.1. Using the…

Astronomers do not have a complete picture of the effects of wide-binary companions (semimajor axes greater than 100 AU) on the formation and evolution of exoplanets. We investigate these effects using new data from Gaia EDR3 and the TESS…

Earth and Planetary Astrophysics · Physics 2022-04-20 Sam Christian , Andrew Vanderburg , Juliette Becker , Daniel A. Yahalomi , Logan Pearce , George Zhou , Karen A. Collins , Adam L. Kraus , Keivan G. Stassun , Zoe de Beurs , George R. Ricker , Roland K. Vanderspek , David W. Latham , Joshua N. Winn , S. Seager , Jon M. Jenkins , Lyu Abe , Karim Agabi , Pedro J. Amado , David Baker , Khalid Barkaoui , Zouhair Benkhaldoun , Paul Benni , John Berberian , Perry Berlind , Allyson Bieryla , Emma Esparza-Borges , Michael Bowen , Peyton Brown , Lars A. Buchhave , Christopher J. Burke , Marco Buttu , Charles Cadieux , Douglas A. Caldwell , David Charbonneau , Nikita Chazov , Sudhish Chimaladinne , Kevin I. Collins , Deven Combs , Dennis M. Conti , Nicolas Crouzet , Jerome P. de Leon , Shila Deljookorani , Brendan Diamond , René Doyon , Diana Dragomir , Georgina Dransfield , Zahra Essack , Phil Evans , Akihiko Fukui , Tianjun Gan , Gilbert A. Esquerdo , Michaël Gillon , Eric Girardin , Pere Guerra , Tristan Guillot , Eleanor Kate K. Habich , Andreea Henriksen , Nora Hoch , Keisuke I Isogai , Emmanuël Jehin , Eric L. N. Jensen , Marshall C. Johnson , John H. Livingston , John F. Kielkopf , Kingsley Kim , Kiyoe Kawauchi , Vadim Krushinsky , Veronica Kunzle , Didier Laloum , Dominic Leger , Pablo Lewin , Franco Mallia , Bob Massey , Mayuko Mori , Kim K. McLeod , Djamel Mékarnia , Ismael Mireles , Nikolay Mishevskiy , Motohide Tamura , Felipe Murgas , Norio Narita , Ramon Naves , Peter Nelson , Hugh P. Osborn , Enric Palle , Hannu Parviainen , Peter Plavchan , Francisco J. Pozuelos , Markus Rabus , Howard M. Relles , Cristina Rodríguez López , Samuel N. Quinn , Francois-Xavier Schmider , Joshua E. Schlieder , Richard P. Schwarz , Avi Shporer , Laurie Sibbald , Gregor Srdoc , Caitlin Stibbards , Hannah Stickler , Olga Suarez , Chris Stockdale , Thiam-Guan Tan , Yuka Terada , Amaury Triaud , Rene Tronsgaard , William C. Waalkes , Gavin Wang , Noriharu Watanabe , Marie-Sainte Wenceslas , Geof Wingham , Justin Wittrock , Carl Ziegler

The NASA TESS mission has discovered many transiting planets orbiting bright nearby stars, and high-resolution imaging studies have revealed that a number of these exoplanet hosts reside in binary or multiple star systems. In such systems,…

Solar and Stellar Astrophysics · Physics 2022-07-27 Kathryn Lester , Steve Howell , David Ciardi , Rachel Matson

We derive solutions to transit light curves of exoplanets orbiting rapidly-rotating stars. These stars exhibit significant oblateness and gravity darkening, a phenomenon where the poles of the star have a higher temperature and luminosity…

Earth and Planetary Astrophysics · Physics 2022-02-16 Shashank Dholakia , Rodrigo Luger , Shishir Dholakia

We present the latest results of our spectroscopic observations and refined modelling of a sample of detached eclipsing binaries (DEBs), selected from the $Kepler$} Eclipsing Binary Catalog, that are also double-lined spectroscopic binaries…

Solar and Stellar Astrophysics · Physics 2019-01-03 K. G. Hełminiak , M. Konacki , H. Maehara , E. Kambe , N. Ukita , M. Ratajczak , A. Pigulski , S. K. Kozłowski

We present a systematic phase curve analysis of known transiting systems observed by the Transiting Exoplanet Survey Satellite (TESS) during year one of the primary mission. Using theoretical predictions for the amplitude of the planetary…

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