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The 222~000 I-band light curves of variable stars detected by the OGLE-II survey in the direction of the Galactic Bulge have been searched for eclipsing binaries (EBs). A previously developed code to analyze lightcurve shapes and identify…

Astrophysics · Physics 2009-11-11 M. A. T. Groenewegen

Semidetached binaries, distinguished by their mass transfer phase, play a crucial role in elucidating the physics of mass transfer within interacting binary systems. To identify these systems in eclipsing binary light curves provided by…

Solar and Stellar Astrophysics · Physics 2025-04-22 Xu Ding , KaiFan Ji , QiYuan Cheng , ZhiMing Song , JinLiang Wang , XueFen Tian , ChuanJun Wang

Close, compact, hierarchical, multiple stellar systems, i.e., multiples having an outer orbital period from months to a few years, comprise a small, but continuously growing group of the triple and multiple star zoo. Many of them consist of…

Solar and Stellar Astrophysics · Physics 2022-01-05 Tamás Borkovits

We present high-precision light curves of several M- and K-type, active detached eclipsing binaries (DEBs), recorded with 2-minute cadence by the Transiting Exoplanet Survey Satellite (TESS). Analysis of these curves, combined with new and…

Solar and Stellar Astrophysics · Physics 2020-09-30 Krzysztof G. Hełminiak , Andrés Jordán , Nestor Espinoza , Rafael Brahm

The Kepler Mission has provided unprecedented, nearly continuous photometric data of $\sim$200,000 objects in the $\sim$105 deg$^{2}$ field of view from the beginning of science operations in May of 2009 until the loss of the second…

We present a classification of the light curve morphologies of eclipsing binary systems observed by ASAS-SN based on their light curve images. The data of 16500 eclipsing systems having three different classes (detached Algol type, $\beta$…

Solar and Stellar Astrophysics · Physics 2020-12-16 Burak Ulas

The Pisgah Survey, located at the facilities of the Pisgah Astronomical Research Institute in Rosman NC, is a low cost project to acquire fully-automated I band photometry of selected areas of the sky. The survey collects multiple images of…

Astrophysics · Physics 2009-11-10 M. Lopez-Morales , J. Christopher Clemens

We present the physical parameters of an eclipsing binary system EPIC 211982753 derived through photometric and radial velocity data modeling. We make use of photometric data from NASA's K2 mission, ASAS-SN, and 1.3-m Devasthal Fast Optical…

Solar and Stellar Astrophysics · Physics 2023-08-23 Alaxender Panchal , Yogesh C. Joshi

The fundamental properties of detached eclipsing binary stars can be measured very accurately, which could make them important objects for constraining the treatment of convection in theoretical stellar models. However, only four or five…

Astrophysics · Physics 2009-11-11 John Southworth , Hans Bruntt

CONTEXT: Accurate mass, radius, and abundance determinations from binaries provide important information on stellar evolution, fundamental to central fields in modern astrophysics and cosmology. AIMS: Within the long-term Copenhagen Binary…

Astrophysics · Physics 2009-11-13 J. V. Clausen , L. P. R. Vaz , J. M. Garcia , A. Gimenez , B. E. Helt , E. H. Olsen , J. Andersen

Context. Double eclipsing binaries are gravitationally bound quadruple systems in a 2+2 configuration where both of the binaries are eclipsing. These systems are interesting objects to better understand stellar formation, to investigate the…

Solar and Stellar Astrophysics · Physics 2023-12-15 T. Vaessen , J. van Roestel

The Comprehensive Research with Echelles on the Most interesting Eclipsing binaries (CR\'EME) projects was aimed to collect high-resolutions spectra of about 380 detached eclipsing binaries (DEBs), which mostly do not have literature RV…

Solar and Stellar Astrophysics · Physics 2024-12-18 Krzysztof G. Hełminiak , Ayush Moharana , Tilak B. Pawar , Ganesh Pawar

Aim: Our purpose is to provide reliable stellar parameters for a significant sample of eclipsing binaries, which are representative of a whole dwarf and metal-poor galaxy. We also aim at providing a new estimate of the mean distance to the…

Solar and Stellar Astrophysics · Physics 2015-05-19 P. L. North , R. Gauderon , F. Barblan , F. Royer

We present a detailed V-band photometric light curve modeling of 30 eclipsing binaries using the data from Pietrukowicz et al. (2009) collected with the European Southern Observatory Very Large Telescope (ESO VLT) of diameter 8-m. The light…

Very high quality light curves are now available for thousands of detached eclipsing binary stars and transiting exoplanet systems as a result of surveys for transiting exoplanets and other large-scale photometric surveys. I have developed…

Instrumentation and Methods for Astrophysics · Physics 2016-06-22 P. F. L. Maxted

Aims. We present the results of our detailed spectroscopic and photometric analysis of two previously unknown < 1 M{_\sun} detached eclipsing binaries: ASAS J045304-0700.4 and ASAS J082552-1622.8. Methods. With the HIgh Resolution Echelle…

Solar and Stellar Astrophysics · Physics 2015-05-20 Krzysztof G. Hełminiak , Maciej Konacki

In this paper, we present the results of a comprehensive study of six eclipsing binaries whose components are confirmed or suspected Am stars. By combining long-term high-resolution CAOS spectroscopy and TESS photometry we have been able to…

Solar and Stellar Astrophysics · Physics 2024-02-27 G. Catanzaro , A. Frasca , J. Alonso-Santiago , C. Colombo

This paper presents a careful and detailed light curve analysis of bright detached eclipsing binaries (DEB) in the Small Magellanic Cloud, discovered by OGLE collaboration, on the basis of recently available difference image analysis (DIA)…

Astrophysics · Physics 2009-11-07 Dariusz Graczyk

We present spectroscopic and photometric solutions for three spotted systems with red giant components. Absolute physical and orbital parameters for these double-lined detached eclipsing binary stars are presented for the first time. These…

Progress in understanding the formation and evolution of planetary nebulae (PN) has been restricted by a paucity of well-determined central star masses. To address this deficiency we aim to (i) significantly increase the number of known…

Astrophysics · Physics 2008-09-16 B. Miszalski , A. Acker , A. F. J. Moffat , Q. A. Parker , A. Udalski