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Related papers: Absolute dimensions of the F-type eclipsing binary…

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The Transiting Exoplanet Survey Satellite (\tess) produces a large number of single-transit event candidates, since the mission monitors most stars for only $\sim$27\,days. Such candidates correspond to long-period planets or eclipsing…

AN Cam is a little-studied eclipsing binary containing somewhat evolved components in an orbit with a period of 21.0 d and an eccentricity of 0.47. A spectroscopic orbit based on photoelectric radial velocities was published in 1977. AN Cam…

Solar and Stellar Astrophysics · Physics 2021-03-08 John Southworth

We present the first detailed analysis of the detached eclipsing binary V15 in the super-metal rich open cluster NGC 6253. We obtain the following absolute parameters: M_p=1.303+-0.006 Msun, R_p=1.71+-0.03 Rsun, L_p=2.98+-0.10 Lsun for the…

Solar and Stellar Astrophysics · Physics 2014-12-30 M. Rozyczka , J. Kaluzny , I. B. Thompson , A. Dotter , W. Pych , W. Narloch

Determinations of stellar mass and radius with realistic uncertainties at the level of 1% provide important constraints on models of stellar structure and evolution. We present a high-precision light curve of the A0IV star Psi Centauri,…

Astrophysics · Physics 2009-11-11 H. Bruntt , J. Southworth , G. Torres , A. J. Penny , J. V. Clausen , D. L. Buzasi

We present the multi-color, five-year light curves and the first radial velocities of the near-contact binary system KR Cyg. We derived the masses of the components as 2.88$\pm$0.20 M$_{\odot}$ and 1.26$\pm$0.07 M$_{\odot}$ and the radii as…

Solar and Stellar Astrophysics · Physics 2012-09-04 E. Sipahi , O. Cakirli , C. Ibanoglu

Eclipsing binaries offer a unique opportunity to determine basic stellar properties. With the advent of wide-field camera and all-sky time-domain surveys, thousands of eclipsing binaries have been charted via light curve classification, yet…

Solar and Stellar Astrophysics · Physics 2017-03-08 Chien-Hsiu Lee

We report on 2MASS J01542930+0053266, a faint eclipsing system composed of two M dwarfs. The variability of this system was originally discovered during a pilot study of the 2MASS Calibration Point Source Working Database. Additional…

ZZ Boo is an F-type detached eclipsing binary system containing two almost-identical stars on a circular orbit with a period of 4.992 d. We analyse light curves from two sectors of observations with the Transiting Exoplanet Survey Satellite…

Solar and Stellar Astrophysics · Physics 2022-12-07 John Southworth

The eclipsing binary LL Aqr consists of two late-type stars in an eccentric orbit with a period of 20.17 d. We use an extensive light curve from the SuperWASP survey augmented by published radial velocities and UBV light curves to measure…

Solar and Stellar Astrophysics · Physics 2015-06-16 John Southworth

Chandra data of the X-ray source [PMH2004] 47 were obtained in the ACIS Survey of M 33 (ChASeM33) in 2006. During one of the observations, the source varied from a high state to a low state and back, in two other observations it varied from…

EBLM J0608-59 / TOI-1338 / BEBOP-1 is a 12th-magnitude, F9V star in an eclipsing binary with a much fainter M-dwarf companion on a wide, eccentric orbit (P=14.6 d). The binary is orbited by two circumbinary planets: one transiting on a…

Solar and Stellar Astrophysics · Physics 2024-06-07 P. F. L. Maxted , N. J. Miller , D. Sebastian , A. H. M. J. Triaud , D. V. Martin , A. Duck

Three presumably young eclipsing binary systems in the direction of the Cygnus OB1, OB3 and OB9 associations are studied. Component spectra are reconstructed and their orbits are determined using light curves and spectra disentangling…

Solar and Stellar Astrophysics · Physics 2015-06-19 V. Bakis , H. Hensberge , S. Bilir , H. Bakis , F. Yilmaz , E. Kiran , O. Demircan , M. Zejda , Z. Mikulasek

V405 And is an ultrafast-rotating (P_rot ~ 0.46 days) eclipsing binary. The system consists of a primary star with radiative core and convective envelope, and a fully convective secondary. Theories have shown, that stellar structure can…

Solar and Stellar Astrophysics · Physics 2012-05-30 K. Vida , K. Oláh , Zs. Kővári

As part of an All-Sky Automated Survey for SuperNovae (ASAS-SN) search for sources with large flux decrements, we discovered a transient where the quiescent, stellar source, ASASSN-V J192114.84+624950.8, rapidly decreased in flux by…

Radial velocities analysis based on high-resolution spectra, obtained in the H$\alpha$ region and low resolution spectra obtained in the region 4420-4960\AA together with radial velocities, taken from other published sources allow us to…

Astrophysics · Physics 2007-12-11 S. L. Malchenko

Interacting binary stars undergo evolution that is significantly different from single stars, thus, a larger sample of such systems with precisely determined stellar parameters is needed to understand the complexities of this process. We…

Solar and Stellar Astrophysics · Physics 2023-11-07 Marina Kounkel , Matteo Statti , Avani Kulkarni , Keivan G. Stassun , Meng Sun

There is a well-known stellar parameter discrepancy for late K and M dwarfs, in that the observed radii and temperatures are often respectively larger and cooler than predicted by theory by several percent. In an on-going effort to…

Double-lined eclipsing binaries allow accurate and direct determination of fundamental parameters such as mass and radius for each component, and they provide important constraints on the stellar structure and evolution models. In this…

Solar and Stellar Astrophysics · Physics 2018-03-14 Jang-Ho Park , Kyeongsoo Hong , Jae-Rim Koo , Jae Woo Lee , Chun-Hwey Kim

Main-sequence stars with convective envelopes often appear larger and cooler than predicted by standard models of stellar evolution for their measured masses. This is believed to be caused by stellar activity. In a recent study, accurate…

Solar and Stellar Astrophysics · Physics 2021-12-24 Guillermo Torres , Gregory A. Feiden , Andrew Vanderburg , Jason L. Curtis

In this paper, we derive the fundamental properties of 1SWASPJ011351.29+314909.7 (J0113+31), a metal-poor (-0.40 +/- 0.04 dex), eclipsing binary in an eccentric orbit (~0.3) with an orbital period of ~14.277 d. Eclipsing M dwarfs orbiting…

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