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Related papers: Multicolour photometry of the M0V+M5V eclipsing bi…

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We have discovered a new, near-equal mass, eclipsing M dwarf binary from the Next Generation Transit Survey. This system is only one of 3 field age ($>$ 1 Gyr), late M dwarf eclipsing binaries known, and has a period of 1.74774 days,…

We present high-speed, multicolour photometry of the faint, eclipsing cataclysmic variable (CV) SDSS J105754.25+275947.5. The light from this system is dominated by the white dwarf. Nonetheless, averaging many eclipses reveals additional…

Convective core overshooting has a strong influence on the evolution of stars of moderate and high mass. Studies of double-lined eclipsing binaries and stellar oscillations have renewed interest in the possible dependence of overshooting on…

Solar and Stellar Astrophysics · Physics 2017-11-01 Antonio Claret , Guillermo Torres

We report extensive photometric and spectroscopic observations of the 6.1-day period, G+M-type detached double-lined eclipsing binary V530 Ori, an important new benchmark system for testing stellar evolution models for low-mass stars. We…

Solar and Stellar Astrophysics · Physics 2015-06-23 G. Torres , C. H. Sandberg Lacy , K. Pavlovski , G. A. Feiden , J. A. Sabby , H. Bruntt , J. V. Clausen

V578 Mon is an eclipsing binary system in which both stars have masses above 10 Msun determined with an accuracy better than 3%. It is one of only five such massive eclipsing binaries known that also possess eccentric orbits and measured…

Solar and Stellar Astrophysics · Physics 2015-06-15 E. V. Garcia , Keivan G. Stassun , Guillermo Torres

In this work we present a model of two young eclipsing binaries in the Orion Complex. Both heavily spotted, they present radii and temperatures that are in disagreement with the predictions of standard stellar models. 2M05-06 consists of…

Solar and Stellar Astrophysics · Physics 2024-08-05 Marina Kounkel , Keivan G. Stassun

Light curves of the long-period Algols are known for their complex shape (asymmetry in the eclipse, light variations outside eclipse, changes from cycle-to-cycle), and their interpretation is not possible in the standard model of binary…

Astrophysics · Physics 2009-11-11 K. Pavlovski , G. Burki , P. Mimica

The eclipsing active binary SV Cam (G0V/K6V, P_0.593071 d) was observed with XMM-Newton during two campaigns in 2001 and 2003. No eclipses in the quiescent emission are clearly identified, but a flare was eclipsed during the 2001 campaign,…

Astrophysics · Physics 2009-11-11 J. Sanz-Forcada , F. Favata , G. Micela

The bright binary system YZ Cassiopeiae is a remarkable laboratory for studying the Am phenomenon. It consists of a metallic-lined A2 star and an F2 dwarf on a circular orbit, which undergo total and annular eclipses. We present an analysis…

Solar and Stellar Astrophysics · Physics 2015-06-17 K. Pavlovski , J. Southworth , V. Kolbas , B. Smalley

We present the first high-resolution spectra for the eclipsing binary V404 Lyr showing $\gamma$ Dor pulsations, which we use to study its absolute properties. By fitting models to the disentangling spectrum of the primary star, we found…

Solar and Stellar Astrophysics · Physics 2020-01-08 Jae Woo Lee , Kyeongsoo Hong , Jae-Rim Koo , Jang-Ho Park

We present the results of our spectroscopic and photometric analysis of two newly discovered low-mass detached eclipsing binaries found in the All-Sky Automated Survey (ASAS) catalogue: ASAS J093814-0104.4 and ASAS J212954-5620.1. Using the…

The first multiband photometric solutions of the short-period V Gru eclipsing binary from the southern hemisphere is presented in this study. Light curves of the system were observed through BVI filters at the Congarinni Observatory in…

Solar and Stellar Astrophysics · Physics 2023-04-26 Mehmet Tanriver , Atila Poro , Ahmet Bulut , Ahmet Keskin , Mark G. Blackford

A comparative analysis of the special shapes (patterns, profiles) of the eclipses applied for the phenomenological modeling of the light curves of eclipsing binary stars is conducted. Families of functions are considered, generalizing local…

Solar and Stellar Astrophysics · Physics 2017-04-19 Ivan L. Andronov , Mariia G. Tkachenko , Lidia Chinarova

The A-type star HR 6412 = V2368 Oph was used by several investigators as a photometric comparison star for the known eclipsing binary U Oph but was found to be variable by three independent groups, including us. By analysing series of new…

Solar and Stellar Astrophysics · Physics 2015-05-28 P. Harmanec , H. Božić , P. Mayer , P. Eenens , M. Brož , M. Wolf , S. Yang , M. Šlechta , D. Ruždjak , D. Sudar , H. Ak

We use photometric and spectroscopic observations of the detached eclipsing binary V209 omega Cen to derive the masses, radii, and luminosities of the component stars. The system exhibits total eclipses and, based on the measured systemic…

Astrophysics · Physics 2008-11-26 J. Kaluzny , S. M. Rucinski , I. B. Thompson , W. Pych , W. Krzeminski

The precise measurement of the masses and radii of stars in eclipsing binary systems provides a window into uncertain processes in stellar evolution, especially mixing at convective boundaries. Recently, these data have been used to…

Solar and Stellar Astrophysics · Physics 2018-10-31 Thomas Constantino , Isabelle Baraffe

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…

Solar and Stellar Astrophysics · Physics 2024-12-11 Yajuan Lei , Guiping Zhou , Liang Wang , Guangwei Li , Kai Li , Tuan Yi

We obtained new multicolour photometry of close binary stars in the young open cluster M35, the solar-age open cluster M67, and the globular cluster M71. New observations have been carried out at the T\"{U}B\.{I}TAK National Observatory…

Solar and Stellar Astrophysics · Physics 2020-04-08 Dolunay Koçak , Tuğçe İçli , Kadri Yakut

This study presents a comprehensive analysis of the detached binary system V570\,Per through combined photometric, spectroscopic, and astrometric observations. By disentangling the composite spectra, precise fundamental parameters and…

Solar and Stellar Astrophysics · Physics 2025-11-20 Gökhan Yücel , Neslihan Alan , Timothy Banks , Remziye Canbay , Volkan Bakış , Selçuk Bilir

We present the analysis of the spectroscopic observations of a newly discovered cataclysmic variable HS0551+7241. In 1995 the star's brightness dropped by Delta(B)~2.5 mag and HS0551+7241 entered a low state lasting for ~2 yr. The H-alpha,…

Astrophysics · Physics 2009-10-30 D. Dobrzycka , A. Dobrzycki , D. Engels , H. -J. Hagen
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