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相关论文: Eclipse Timing Modeling of Three Post-Common Envel…

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In our research, we studied 9 eclipsing binary stars: AR Lac, U CrB, S Equ, SU Boo, VV UMa, WW Gem, YY Eri, V0404 Lyr, HP Aur. We collected large sets of moments of minima from BRNO and observational data from AAVSO databases. Then, we…

太阳与恒星天体物理 · 物理学 2020-10-09 D. E. Tvardovskyi , V. I. Marsakova , I. L. Andronov

We report an eclipse timing variations (ETV) study to identify close, stellar mass companions to the eclipsing binaries monitored during the photometric survey OGLE-IV. We also present an alternative automatic way to determine the first and…

太阳与恒星天体物理 · 物理学 2021-10-20 Tamás Hajdu , Tamás Borkovits , Emese Forgács-Dajka , János Sztakovics , Attila Bódi

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…

天体物理学 · 物理学 2009-11-11 S. Soderhjelm , J. Dischler

In this work, we investigate the eclipse timing of the polar binary HU Aquarii that has been observed for almost two decades. Recently, Qian et al. attributed large (O-C) deviations between the eclipse ephemeris and observations to a…

We report on the properties of eclipsing binaries from the Kepler mission with a newly developed photometric modeling code, which uses the light curve, spectral energy distribution of each binary, and stellar evolution models to infer…

太阳与恒星天体物理 · 物理学 2019-08-14 Diana Windemuth , Eric Agol , Aleezah Ali , Flavien Kiefer

We present the results of a search through the photometric database of eclipsing Kepler binaries (Prsa et al. 2011; Slawson et al. 2011) looking for evidence of hierarchical triple star systems. The presence of a third star orbiting the…

太阳与恒星天体物理 · 物理学 2015-06-12 S. Rappaport , K. Deck , A. Levine , T. Borkovits , J. Carter , I. El Mellah , R. Sanchis-Ojeda , B. Kalomeni

For the very short-period sdB eclipsing binary HW Vir, we present new CCD photometry made from 2000 through 2008. In order to obtain consistency of the binary parameters, our new light curves were analyzed simultaneously with previously…

天体物理学 · 物理学 2009-11-13 Jae Woo Lee , Seung-Lee Kim , Chun-Hwey Kim , Robert H. Koch , Chung-Uk Lee , Ho-Il Kim , Jang-Ho Park

Binaries with a white dwarf primary and a main sequence secondary can be used to test our understanding of both single and binary star evolution. A small fraction of such systems experienced a common-envelope phase from which they emerged…

太阳与恒星天体物理 · 物理学 2022-08-08 R. Priyatikanto , C. Knigge , S. Scaringi , J. Brink , D. A. H. Buckley

We report a comprehensive search for hierarchical triple stellar system candidates amongst eclipsing binaries (EB) observed by the CoRoT spacecraft. We calculate and check eclipse timing variation (ETV) diagrams for almost 1500 EBs in an…

太阳与恒星天体物理 · 物理学 2017-08-16 T. Hajdu , T. Borkovits , E. Forgács-Dajka , J. Sztakovics , G. Marschalkó , J. M. Benkő , P. Klagyivik , M. J. Sallai

We present detailed analyses of updated eclipse timing diagrams for 32 contact binary merger candidates in the Galactic bulge. The photometric data was obtained from 2016 to 2021 using the Korea Microlensing Telescope Network (KMTNet) with…

太阳与恒星天体物理 · 物理学 2025-03-25 Kyeongsoo Hong , Jae Woo Lee , Dong-Jin Kim , Jang-Ho Park , Hye-Young Kim , Pakakaew Rittipruk , Cheongho Han

We present time-series spectroscopy and photometry of Gaia DR2 6097540197980557440, a new deeply-eclipsing hot subdwarf B (sdB) + M dwarf (dM) binary. We discovered this object during the course of the Eclipsing Reflection Effect Binaries…

太阳与恒星天体物理 · 物理学 2021-09-08 Kyle A. Corcoran , Brad N. Barlow , Veronika Schaffenroth , Uli Heber , Stephen Walser , Andreas Irgang

We present results of the combined photometric and spectroscopic analysis of three detached eclipsing binaries, which secondary components are not visible or very hard to identify in the optical spectra - ASAS J052743-0359.7, ASAS…

Hot subdwarf B stars (sdBs) are evolved, core helium-burning objects located on the extreme horizontal branch. Their formation history is still puzzling as the sdB progenitors must lose nearly all of their hydrogen envelope during the…

太阳与恒星天体物理 · 物理学 2015-04-22 V. Schaffenroth , B. N. Barlow , H. Drechsel , B. H. Dunlap

We describe the discovery of a 0.68+0.52 solar mass eclipsing binary (EB) with an 8.4-day orbital period, found through a systematic search of ten fields of the Trans-atlantic Exoplanet Survey (TrES). Such long-period low-mass EBs…

Eclipsing binary star systems provide the most accurate method of measuring both the masses and radii of stars. Moreover, they enable testing tidal synchronization and circularization theories, as well as constraining models of stellar…

天体物理学 · 物理学 2008-11-04 Jonathan Devor

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…

太阳与恒星天体物理 · 物理学 2019-11-12 F. Pozo Nuñez , R. Chini , A. Barr Domínguez , Ch. Fein , M. Hackstein , Pietrzyński , Grzegorz , M. Murphy

We report our investigation of 1SWASP J234401.81-212229.1, a variable with a 18461.6 s period. After identification in a 2011 search of the SuperWASP archive for main-sequence eclipsing binary candidates near the distribution's short-period…

太阳与恒星天体物理 · 物理学 2015-06-17 M. E. Lohr , A. J. Norton , U. C. Kolb , D. R. S. Boyd

Eclipse timing variations (ETV) have been a successful tool for detecting circumbinary companions to eclipsing binaries (EB). While TESS and Kepler have been prolific for ETV searches, they sometimes can be limited by time and sky coverage…

We present a catalog of 56 candidate intermediate mass eclipsing binary systems extracted from the 3rd data release of the All Sky Automated Survey. We gather pertinent observational data and derive orbital properties, including…

太阳与恒星天体物理 · 物理学 2015-05-27 S. J. Williams , D. R. Gies , J. W. Helsel , R. A. Matson , S. Caballero-Nieves

In the last few years, a number of planets have been proposed to orbit several post main-sequence binary star systems on the basis of observed variations in the timing of eclipses between the binary components. A common feature of these…

地球与行星天体物理 · 物理学 2014-01-28 Jonathan Horner , Robert Wittenmyer , Tobias Hinse , Jonathan Marshall , Alex Mustill