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Planetary materials orbiting white dwarf stars reveal the ultimate fate of the planets of the Solar System and all known transiting exoplanets. Observed metal pollution and infrared excesses from debris disks support that planetary systems…

Earth and Planetary Astrophysics · Physics 2020-10-14 Keaton J. Bell

NASA's TESS mission has unveiled a plethora of eclipsing binaries (EBs), among them hundreds of triples and higher order, hierarchical systems. These complex targets require follow-up observations to enable full characterization of system…

We report results from a search for Galactic high-mass eclipsing binaries. The photometric monitoring campaign was performed in Sloan $r$ and $i$ with the robotic twin refractor RoBoTT at the Universit\"atssternwarte Bochum in Chile and…

Solar and Stellar Astrophysics · Physics 2019-11-12 F. Pozo Nuñez , R. Chini , A. Barr Domínguez , Ch. Fein , M. Hackstein , Pietrzyński , Grzegorz , M. Murphy

Building on previous work, a new search of the SuperWASP archive was carried out to identify eclipsing binary systems near the short-period limit. 143 candidate objects were detected with orbital periods between 16000 and 20000 s, of which…

Solar and Stellar Astrophysics · Physics 2015-06-11 M. E. Lohr , A. J. Norton , U. C. Kolb , P. F. L. Maxted , I. Todd , R. G. West

Eclipsing binaries offer a unique opportunity to determine fundamental physical parameters of stars using the constraints on the geometry of the systems. Here we present a reanalysis of publicly available two-color observations of about…

Astrophysics · Physics 2009-03-09 A. Derekas , L. L. Kiss , T. R. Bedding

We present the discovery of 52 eclipsing quadruple star candidates detected in TESS Full Frame Image eleanor data by machine learning and citizen scientists. The uniformly-vetted and -validated targets exhibit two sets of eclipses following…

We report the discovery of ZTF J2243+5242, an eclipsing double white dwarf binary with an orbital period of just $8.8$ minutes, the second known eclipsing binary with an orbital period less than ten minutes. The system likely consists of…

The expected distributions of eclipse-depth versus period for eclipsing binaries of different luminosities are derived from large-scale population synthesis experiments. Using the rapid Hurley et al. BSE binary evolution code, we have…

Astrophysics · Physics 2009-11-11 S. Soderhjelm , J. Dischler

High-precision and long-duration light curves from space telescopes have revolutionized the fields of asteroseismology and binary star systems. In particular, the number of pulsating systems in eclipsing binaries has drastically increased…

Solar and Stellar Astrophysics · Physics 2025-09-11 John Southworth , Dominic Bowman

The fifth-generation Sloan Digital Sky Survey (SDSS-V) includes the first large-scale spectroscopic survey of white dwarfs (WDs) in the era of Gaia parallaxes. SDSS-V collects multiple exposures per target, making it ideal for binary…

The couplings between supermassive black-hole binaries and their environments within galactic nuclei have been well studied as part of the search for solutions to the final parsec problem. The scattering of stars by the binary or the…

General Relativity and Quantum Cosmology · Physics 2016-01-26 S. R. Taylor , E. A. Huerta , J. R. Gair , S. T. McWilliams

ASAS is a long term project to monitor bright variable stars over the whole sky. It has discovered 50,122 variables brighter than V < 14 mag south of declination +28 degrees, and among them 11,099 eclipsing binaries. We present a…

Astrophysics · Physics 2009-11-11 B. Paczynski , D. Szczygiel , B. Pilecki , G. Pojmanski

There is a relatively large population of known double white dwarfs (DWDs) that were mostly discovered through spectroscopic observations and by measuring their radial velocity variations. Photometric observations from these systems give us…

Solar and Stellar Astrophysics · Physics 2025-07-15 Sedighe Sajadian , Aref Asadi

The detection of O- and B-type stars with extremely low-mass companions is very important for understanding the formation and evolution of binary stars. However, their finding remains a challenge because the low-mass components in such…

Solar and Stellar Astrophysics · Physics 2024-09-17 Linfeng Chang , Shengbang Qian , Lei Zang , Fuxing Li

Extreme eclipsing binaries may harbor peculiar physical properties. In this work, we aim to identify a sample of such systems by selecting binaries with pronounced eclipsing light curves, characterized of large variability ($\Delta…

Solar and Stellar Astrophysics · Physics 2025-04-16 Jiangxinxin Zhuang , Zhi-Xiang Zhang , Wei-Min Gu , Senyu Qi

The light-time effect method, its limitations and applications were studied. A powerful combined method of simultaneous analysis of the O-C diagrams and astrometric orbit in triple eclipsing-astrometric binaries was presented. Eleven…

Astrophysics · Physics 2009-09-29 P. Zasche

The development of large-scale time-domain surveys provides an opportunity to study the physical properties as well as the evolutionary scenario of B-type subdwarfs (sdB) and M-type dwarfs (dM). Here, we obtained 33 sdB+dM eclipsing…

Solar and Stellar Astrophysics · Physics 2022-03-14 Min Dai , Xiaodian Chen , Kun Wang , Yangping Luo , Shu Wang , Licai Deng

We present the first discoveries of the double-lined double white dwarf (DBL) survey that targets over-luminous sources with respect to the canonical white dwarf cooling sequence according to a set of well-defined criteria. The primary goal…

In this work, we study a heterogeneous group of seven stellar systems for the first time. Despite their different distances or spectral types, all of them belong to a very rare group of quadruple systems of 2+2 architecture, where both of…

Solar and Stellar Astrophysics · Physics 2023-06-21 P. Zasche , Z. Henzl , M. Masek , R. Uhlar , J. Kara , J. Merc , H. Kucakova