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We present absolute physical and orbital parameters for three double-lined detached eclipsing binary systems from the All Sky Automated Survey (ASAS) catalogue with subgiant and giant components. These parameters were derived from archival…

Solar and Stellar Astrophysics · Physics 2013-06-21 M. Ratajczak , K. G. Hełminiak , M. Konacki , A. Jordan

The paper presents combined spectroscopic and photometric orbital solutions for ten close binary systems: CN And, V776 Cas, FU Dra, UV Lyn, BB Peg, V592 Per, OU Ser, EQ Tau, HN UMa and HT Vir. The photometric data consist of new multicolor…

Solar and Stellar Astrophysics · Physics 2009-03-10 S. Zola , J. M. Kreiner , B. Zakrzewski , D. P. Kjurkchieva , D. V. Marchev , A. Baran , S. M. Rucinski , W. Ogloza , M. Siwak , D. Koziel , M. Drozdz , B. Pokrzywka

We derive the absolute physical and orbital parameters for a sample of 18 detached eclipsing binaries from the \emph{All Sky Automated Survey} (ASAS) database based on the available photometry and our own radial velocity measurements. The…

Solar and Stellar Astrophysics · Physics 2015-05-14 K. G. Hełminiak , M. Konacki , M. Ratajczak , M. Muterspaugh

The young binary system HD 350731 is a noteworthy laboratory for studying early-type binaries with similar components. We present here the analysis of differential multi-color photometric and spectroscopic observations for the double-lined…

Solar and Stellar Astrophysics · Physics 2015-08-06 F. Soydugan , F. Alicavus , S. Bilir , E. Soydugan , C. Puskullu , T. Senyuz

We performed a detailed spectroscopic study of the SB2 system HD 60803 based on high-resolution spectra obtained with the different spectrographs. The analysis was done with two independent methods: a) the direct modelling of the observed…

Solar and Stellar Astrophysics · Physics 2021-11-17 T. Ryabchikova , S. Zvyagintsev , A. Tkachenko , V. Tsymbal , Yu. Pakhomov , E. Semenko

We present the latest results of our spectroscopic observations and refined modelling of a sample of detached eclipsing binaries (DEBs), selected from the $Kepler$} Eclipsing Binary Catalog, that are also double-lined spectroscopic binaries…

Solar and Stellar Astrophysics · Physics 2019-01-03 K. G. Hełminiak , M. Konacki , H. Maehara , E. Kambe , N. Ukita , M. Ratajczak , A. Pigulski , S. K. Kozłowski

We present the physical parameters of three short period close binaries using the observed data from Kepler Space Telescope. All of these observations were taken in a single bandpass (which approximates the Johnson V-band). Our three…

Solar and Stellar Astrophysics · Physics 2019-04-03 M. A. NegmEldin , A. Essam , S. M. Yousef

We present the first full orbital and physical analysis of HD 187669, recognized by the All-Sky Automated Survey (ASAS) as the eclipsing binary ASAS J195222-3233.7. We combined multi-band photometry from the ASAS and SuperWASP public…

The first multicolor observations, and light curve solutions, of the eclipsing binary systems V1009~Per and CRTS~J031642.2+332639 are presented. Using the 2005 version of the Wilson-Devinney code, both systems are found to be W UMa contact…

Solar and Stellar Astrophysics · Physics 2019-02-13 Raul Michel , Francesco Acerbi , Carlo Barani , Massimiliano Martignoni

This work analyzes four Sun-like double-lined spectroscopic binary (SB2) systems by combining visual and spectroscopic observational data with Al-Wardat's atmospheric modeling method to accurately determine their fundamental parameters. For…

Light curves of the semi-detached eclipsing binary system TZ Eridani in the Geneva 7-colour photometric system were analysed using the Wilson-Devinney programme. The physical and orbital parameters have been determined through a…

Astrophysics · Physics 2014-10-13 F. Barblan , P. Bartholdi , P. North , G. Burki , E. C. Olson

We present the first orbital elements for the massive close binary, HD 115071, a double-lined spectroscopic binary in a circular orbit with a period of 2.73135 +/- 0.00003 days. The orbital semiamplitudes indicate a mass ratio of M_2/M_1 =…

Astrophysics · Physics 2009-11-07 L. R. Penny , D. R. Gies , J. H. Wise , D. J. Stickland , C. Lloyd

Eclipsing binary systems hold a central position within astrophysics in that the fundamental parameters of stars can be determined by direct observations. The simultaneous analyses of high-quality space observations, combined with…

Solar and Stellar Astrophysics · Physics 2023-10-25 Neslihan Alan

Recently, Gauza et al. (2015) reported the discovery of a companion to the late M-dwarf, VHS J125601.92-125723.9 (VHS 1256-1257). The companion's absolute photometry suggests its mass and atmosphere are similar to the HR 8799 planets.…

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…

Based on luminosity contributions, we develop a spectroscopic modelling method to derive atmospheric parameters of component stars in binary systems. The method is designed for those spectra of binaries which show double-lined features due…

Solar and Stellar Astrophysics · Physics 2023-03-15 Xiang-Lei Chen , A-Li Luo , Jian-Jun Chen , Rui Wang , Xiao-Bin Zhang , Wen Hou , Bo Qiu , Fang Zuo

Aims. HD166734 is an eccentric eclipsing binary system composed of two supergiant O-type stars, orbiting with a 34.5-day period. In this rare configuration for such stars, the two objects mainly evolve independently, following single-star…

Solar and Stellar Astrophysics · Physics 2017-11-22 L. Mahy , Y. Damerdji , E. Gosset , C. Nitschelm , P. Eenens , H. Sana , A. Klotz

We calculated physical and orbital properties for 2M06464003+0109157, a 1.06 day eclipsing double lined spectroscopic binary. We modelled the system's ASAS-SN and TESS light curves, measuring the system's inclination and radii of each…

Solar and Stellar Astrophysics · Physics 2021-03-31 Annaliese Miller , Marina Kounkel , Chase Boggio , Kevin Covey , Adrian M. Price-Whelan

We present an analysis of a new, detached, double-lined eclipsing binary system with K7 Ve components, discovered as part of the University of New South Wales Extrasolar Planet Search. The object is significant in that only 6 other binary…

Using the technique of spectral disentangling, it is possible to determine the individual spectra of the components of a multiple star system from composite spectra observed at a range of orbital phases. This method has several advantages:…

Solar and Stellar Astrophysics · Physics 2015-05-20 E. Tamajo , K. Pavlovski , J. Southworth