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Related papers: Eclipse Timing Modeling of Three Post-Common Envel…

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We present a catalogue containing 839 candidate post common envelope systems. Common envelope evolution is very important in stellar astrophysics, particularly in the context of very compact and short-period binaries, including cataclysmic…

Solar and Stellar Astrophysics · Physics 2021-10-27 Matthias U. Kruckow , Patrick G. Neunteufel , Rosanne Di Stefano , Yan Gao , Chiaki Kobayashi

We identify 231 objects in the newly released Cycle 0 dataset from the Kepler Mission as double-eclipse, detached eclipsing binary systems with Teff < 5500 K and orbital periods shorter than ~32 days. We model each light curve using the…

Solar and Stellar Astrophysics · Physics 2015-05-19 J. L. Coughlin , M. Lopez-Morales , T. E. Harrison , N. Ule , D. I. Hoffman

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 around the B components moving in front of the A components.…

This study continues our in-depth investigation of total-eclipse W Ursae Majoris-type contact binaries by analyzing eight new systems, complementing our previous work. Multiband $BVR_cI_c$ photometric data were acquired through ground-based…

The Chinese Small Telescope ARray (CSTAR) has observed an area around the Celestial South Pole at Dome A since 2008. About $20,000$ light curves in the i band were obtained lasting from March to July, 2008. The photometric precision…

Using Campaign 15 data from the K2 mission, we have discovered a triply-eclipsing triple star system: EPIC 249432662. The inner eclipsing binary system has a period of 8.23 days, with shallow $\sim$3% eclipses. During the entire 80-day…

We report the detection of eclipses in GJ 3236, a bright (I = 11.6) very low mass binary system with an orbital period of 0.77 days. Analysis of light- and radial velocity curves of the system yielded component masses of 0.38 +/- 0.02 and…

We present orbital elements, orbital parallaxes and individual component masses, for fourteen spatially resolved double-line spectroscopic binaries derived doing a simultaneous fit of their visual orbit and radial velocity curve. This was…

Solar and Stellar Astrophysics · Physics 2022-02-16 Jennifer Anguita-Aguero , Rene A. Mendez , Ruben M. Claveria , Edgardo Costa

Aims. We present new photometry of the faint and poorly studied cataclysmic variable SDSS J152419.33+220920.0, analyze its light curve and provide an accurate ephemeris for this system. Methods. Time-resolved CCD differential photometry was…

Solar and Stellar Astrophysics · Physics 2015-06-15 R. Michel , J. Echevarria , J. V. Hernandez-Santisteban

We searched for circumbinary planets orbiting NY Vir in historical eclipse times including our long-term CCD data. Sixty-eight times of minimum light with accuracies better than 10 s were used for the ephemeris computations. The best fit to…

Solar and Stellar Astrophysics · Physics 2015-06-22 Jae Woo Lee , Tobias Cornelius Hinse , Jae-Hyuck Youn , Wonyong Han

We report on the search for new eclipsing white dwarf plus main-sequence (WDMS) binaries in the light curves of the Catalina surveys. We use a colour selected list of almost 2000 candidate WDMS systems from the Sloan Digital Sky Survey,…

We present 7 eclipse timings of the low mass X-ray binary EXO0748-676 obtained with the USA experiment during 1999-2000 as well as 122 eclipse timings obtained with RXTE during 1996-2000. According to our analysis, the mean orbital period…

Astrophysics · Physics 2007-05-23 M. T. Wolff , P. Hertz , K. S. Wood , P. S. Ray , R. M. Bandyopadhyay

We have investigated the dynamical stability of the proposed companions orbiting the Algol type short-period eclipsing binary SW Lyncis (Kim et al. 2010). The two candidate companions are of stellar to sub-stellar nature, and were inferred…

Solar and Stellar Astrophysics · Physics 2015-06-22 Tobias C. Hinse , Jonathan Horner , Robert A. Wittenmyer

This study presents photometric solutions for a carefully selected sample of 181 detached eclipsing binary systems recently observed by the Transiting Exoplanet Survey Satellite (TESS) mission. Our findings contribute to discussions about…

Solar and Stellar Astrophysics · Physics 2024-05-02 L. Siqueira , B. W. Freitas , D. B. de Freitas

In recent years we have witnessed an explosion of photometric time-series data, collected for the purpose of finding a small number of rare sources, such as transiting extrasolar planets and gravitational microlenses. Once combed, these…

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…

Context: Multiple stellar systems are unique laboratories for astrophysics. Analysis of their orbital dynamics may reveal invaluable information about the physical properties of the participating stars. Unfortunately, there are only a few…

Solar and Stellar Astrophysics · Physics 2018-01-10 J. Juryšek , P. Zasche , M. Wolf , J. Vraštil , D. Vokrouhlický , M. Skarka , J. Liška , J. Janík , M. Zejda , P. Kurfürst , E. Paunzen

We present new eclipse observations of the polar (i.e. semi-detached magnetic white dwarf + M-dwarf binary) HU Aqr, and mid-egress times for each eclipse, which continue to be observed increasingly early. Recent eclipses occurred more than…

Solar and Stellar Astrophysics · Physics 2015-06-22 M. Bours , T. Marsh , E. Breedt , C. Copperwheat , V. Dhillon , A. Leckngam , S. Littlefair , S. Parsons , A. Prasit

In this work, we search for observational evidence of higher-order secular perturbations in three eclipsing binaries. These are slightly eccentric binaries, and they form the inner pairs of tight, compact, hierarchical triple star systems.…

Solar and Stellar Astrophysics · Physics 2023-11-14 Tamás Borkovits , Tibor Mitnyan

SuperWASP light curves for 53 W UMa-type eclipsing binary (EB) candidates, identified in previous work as being close to the contact binary short-period limit, were studied for evidence of period change. The orbital periods of most of the…

Solar and Stellar Astrophysics · Physics 2012-06-20 M. E. Lohr , A. J. Norton , U. C. Kolb , D. R. Anderson , F. Faedi , R. G. West
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