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In this study, we present CG Aur's photometric observations obtained in the observing seasons 2011 and 2012, the first available multi-colour light curves. Their shape indicates that the system is an Algol binary. The light curve analyses…

太阳与恒星天体物理 · 物理学 2012-09-12 Esin Sipahi , Hasan Ali Dal

We present the first modern analysis of two young, eclipsing binaries, EK Cep and HS Her, based on new, ground-based, CCD multicolour light curves as well as the TESS observations, radial velocity curves, and eclipse timing measurements.…

太阳与恒星天体物理 · 物理学 2022-07-21 Olivera Latković , Kosmas Gazeas , Haralambi Markov , Atila Čeki , Sofia Palafouta

Multiband CCD photometric observations of SZ Her were obtained between 2008 February and May. The light curve was completely covered and indicated a significant temperature difference between both components. The light-curve synthesis…

太阳与恒星天体物理 · 物理学 2015-06-03 Jae Woo Lee , Chung-Uk Lee , Seung-Lee Kim , Ho-Il Kim , Jang-Ho Park

CCD multi-band light curves of the neglected eclipsing binaries V405 Cep, V948 Her, KR Mon and UZ Sge were obtained and analysed using the Wilson-Devinney code. New geometric and absolute parameters were derived and used to determine their…

太阳与恒星天体物理 · 物理学 2014-04-11 Alexios Liakos , Panagiotis Niarchos

The chemical composition of stellar photospheres in mass-transferring binary systems is a precious diagnostic of the nucleosynthesis processes that occur deep within stars, and preserves information on the components history. The binary…

太阳与恒星天体物理 · 物理学 2015-06-22 V. Kolbas , A. Dervisoglu , K. Pavlovski , J. Southworth

We present the results of a multi-site photometric campaign carried out in 2004-2008 for the Algol-type eclipsing binary system CT Her, the primary component of which shows Delta Scuti-type oscillations. Our data consist of differential…

Thirty-three eclipsing binaries were selected for an analysis from a huge database of observations made by the INTEGRAL/OMC camera. The photometric data were processed and analyzed, resulting in a first light-curve study of these neglected…

太阳与恒星天体物理 · 物理学 2009-11-12 P. Zasche

By cross-matching the eclipsing binary catalog from TESS with that from LAMOST MRS, semi-detached eclipsing binaries with radial velocities coverage spanning more than 0.3 phases were authenticated. The absolute parameters for these systems…

太阳与恒星天体物理 · 物理学 2024-12-11 Yajuan Lei , Guiping Zhou , Liang Wang , Guangwei Li , Kai Li , Tuan Yi

Eclipsing binaries serve as a valuable source of stellar masses and radii that inform stellar evolutionary models and provide insight into additional astrophysical processes. The exquisite light curves generated by space-based missions such…

太阳与恒星天体物理 · 物理学 2016-05-25 Rachel A. Matson , Douglas R. Gies , Zhao Guo , Jerome A. Orosz

Discovery of binary systems among RR Lyrae stars belongs to challenges of present astronomy. So far, none of classical RR Lyrae stars was clearly confirmed that it is a part of an eclipsing system. For this reason we studied two RR Lyrae…

太阳与恒星天体物理 · 物理学 2016-01-14 J. Liska , M. Skarka , P. Hajkova , R. F. Auer

Aims: We aim to derive the absolute parameters of the components of AD And, AL Cam, and V338 Her, interpret their orbital period changes and discuss their evolutionary status. Methods: New and complete multi-filter light curves of the…

太阳与恒星天体物理 · 物理学 2014-04-11 Alexios Liakos , Panagiotis Niarchos , Edwin Budding

We present the first evidence for the binarity of four targets in the TESS field. The temperatures are estimated by SED analysis and the orbital periods are determined. The TESS light curves of the systems are analysed and the orbital and…

太阳与恒星天体物理 · 物理学 2022-01-05 Burak Ulas

We present a detailed study of KIC 2306740, an eccentric double-lined eclipsing binary system. Kepler satellite data were combined with spectroscopic data obtained with the 4.2 m William Herschel Telescope (WHT). This allowed us to…

太阳与恒星天体物理 · 物理学 2021-04-14 D. Koçak , K. Yakut , J. Southworth , P. P. Eggleton , T. İçli , C. A. Tout , S. Bloemen

KIC 10661783 is an eclipsing binary that shows Delta Sct-like oscillations. More than 60 pulsation frequencies have been detected in its light curve as observed by the Kepler satellite. We want to determine the fundamental stellar and…

太阳与恒星天体物理 · 物理学 2013-08-20 H. Lehmann , J. Southworth , A. Tkachenko , K. Pavlovski

We present a new study of the Algol-type eclipsing binary system AS Eri based on the combination of the MOST and TESS light curves and a collection of very precise radial velocities obtained with the spectrographs HERMES operating at the…

太阳与恒星天体物理 · 物理学 2022-02-04 P. Lampens , D. Mkrtichian , H. Lehmann , K. Gunsriwiwat , L. Vermeylen , J. Matthews , R. Kuschnig

I present light curves for two detached eclipsing binary stars in the region of the LMC cluster NGC 1850, which is possibly a young globular cluster still in formation. One, a likely spectral type O star, is a newly detected eclipsing…

天体物理学 · 物理学 2009-11-10 Stuart F. Taylor

Analyzing available photometry from the Super WASP and other databases, we performed the very first light curve analysis of eight eclipsing binary systems V537 And, GS Boo, AM CrB, V1298 Her, EL Lyn, FW Per, RU Tri, and WW Tri. All of these…

太阳与恒星天体物理 · 物理学 2014-09-19 P. Zasche

The available photometry from the online databases were used for the first light curve analysis of eight eclipsing binary systems EI Aur, XY Dra, BP Dra, DD Her, VX Lac, WX Lib, RZ Lyn, and TY Tri. All these stars are of Algol-type, having…

太阳与恒星天体物理 · 物理学 2015-08-05 P. Zasche

We focus on short--period eclipsing binaries that belong to a class of Cataclysmic Variables (CVs). They are known as polars and intermediate polars, closely resembling their prototype AM Herculis. These binaries consist of a red dwarf and…

地球与行星天体物理 · 物理学 2014-03-20 Aga Słowikowska , Krzysztof Goździewski , Ilham Nasiroglu , Gottfried Kanbach , Arne Rau , Krzysztof Krzeszowski
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