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We present our ground-based CCD observations of the close binary systems DD Mon and XY UMa in B, V, R and I bands. The light curves are analyzed using the Wilson-Devinney code (W-D) for the derivation of the geometric and photometric…

Solar and Stellar Astrophysics · Physics 2009-10-16 K. Gazeas , A. Liakos , P. Niarchos

The CCD observations for the W UMa type binary systems GSC 2362-2866 and GSC 107-596 have been analyzed using the Wilson-Devinney Code to determine their photometric orbital and physical parameters. The results show that both systems may be…

Solar and Stellar Astrophysics · Physics 2014-02-14 A. Essam , N. S. Awadalla , M. A. El-Sadek , G. B. Ali

The $B$ $V$ $R_c$ $I_c$ bands light curves of the newly discovered binary system \astrobj{GSC 03122-02426} are obtained and analyzed using the Wilson-Devinney (W-D) code. The solutions suggest that the mass ratio of the binary system is $q…

Solar and Stellar Astrophysics · Physics 2016-08-04 X. Zhou , S. -B. Qian , J. -J. He , J. Zhang , B. Zhang

New BVRI light curves of the eclipsing binary system 1SWASP J160156.04+202821.6 have been obtained with the 1.88-m telescope of Kottamia Astronomical Observatory (KAO), Egypt on June, 2013. New twenty times of minima of the system J1601 and…

Solar and Stellar Astrophysics · Physics 2015-06-19 A. Essam , Nasser M. A

Two sets of photometric observations of the system AH Tauri have been analyzed using the latest version of the Wilson-Devinney code. The results show that AH Tauri may classified as A-type of W-UMa eclipsing binary. The mass ratio of q =…

Solar and Stellar Astrophysics · Physics 2014-02-13 M. A. El-Sadek , N. S. Awadalla , A. Essam , M. A. Rassem

New BVRI CCD observations of the semi-detached eclipsing binary EG Cep are presented. The observed light curves are analyzed with the Wilson-Devinney program and new geometrical and photometric elements are derived. These elements are used…

Solar and Stellar Astrophysics · Physics 2014-04-14 Chloi Vamvatira-Nakou , Alexios Liakos , Vassilios Manimanis , Panagiotis Niarchos

The multicolour photometric observations of the neglected eclipsing binary FT Ursae Majoris (FT UMa) were obtained in 2010. The 2003 version of Wilson-Devinney code was used to analyze the light curves in $B$, $V$, and $R$ bands…

Solar and Stellar Astrophysics · Physics 2015-05-28 Jin-Zhao Yuan

New CCD light curves of the recently detected eclipsing variable GSC 4589-2999 were obtained and analysed using the Wilson-Deninney code. Spectroscopic observations of the system allowed the spectral classification of the components and the…

Solar and Stellar Astrophysics · Physics 2014-04-11 Alexios Liakos , Paolo Bonfini , Panagiotis Niarchos , Despina Hatzidimitriou

New CCD photometric observations of the eclipsing binary V566 Oph have been obtained. The light curves are analyzed with the Wilson-Devinney code and new geometric and photometric elements are derived. A new O-C analysis of the system is…

Solar and Stellar Astrophysics · Physics 2009-12-21 A. Liakos , S. Varrias , P. Niarchos

Using multicolour photometry we have confirmed the binary nature of the new W-type W UMa eclipsing binary VSX J053024.8+842243 and established its primary eclipse ephemeris to be HJD = 2455924.38150(26) + 0.4322929(1) * E. Using the light…

Solar and Stellar Astrophysics · Physics 2018-04-04 D. R. S. Boyd

Photometric and spectroscopic observations of the unstudied 12th-magnitude eclipsing binary GSC 04778-00152 are presented. We report the discovery of a visual companion about 1 mag fainter and 2 arcsec away from the binary. By subtracting…

Astrophysics · Physics 2008-09-12 T. Tuvikene , T. Eenmäe , C. Sterken , E. Brogt

V0842 Cep is a W UMa-type binary star that has been neglected since its discovery. We analysed the VR$_c$I$_c$ light curves, obtained by the 1 m telescope at the Weihai Observatory of Shandong University, using the Wilson-Devinney code.…

Solar and Stellar Astrophysics · Physics 2021-06-23 Yu-Yang Li , Kai Li , Yuan Liu

The Tarleton Observatory's 0.8m telescope and CCD photometer were used to obtain 1298 observations of the short period eclipsing binary star MW And. The observations were obtained in Johnson's BVR filters. The light curves show that MW And…

Solar and Stellar Astrophysics · Physics 2018-08-21 Ahmed Waqas Zubairi , Shaukat Goderya , Fazeel Mahmood Khan

In this paper, CCD photometric light curves for the short-period eclipsing binary 1SWASP J140533.33+114639.1 (hereafter J1405) in the $BVR$ bands are presented and analyzed using the 2013 version of the Wilson-Devinney (W-D) code. It is…

Solar and Stellar Astrophysics · Physics 2018-04-04 Bin Zhang , Sheng-bang Qian , R. Michel , B. Soonthornthum , Li-ying Zhu

We present the results of our study of the eclipsing binary systems CSS J112237.1+395219, LINEAR 1286561 and LINEAR 2602707 based on new CCD $B$, $V$, $R_c$ and $I_c$ complete light curves. The ultra-short period nature of the stars…

Solar and Stellar Astrophysics · Physics 2020-05-06 F. Acerbi , R. Michel , C. Barani , M. Martignoni , L. Fox-Machado

When observing the transiting extrasolar planets, we discovered a new W UMa type binary GSC 03553-00845. Following observation was carried out using the 1m telescope at Weihai Observatory of Shandong University. Complete BVR light curves…

Solar and Stellar Astrophysics · Physics 2015-06-22 D. -F. Guo , K. Li , S. -M. Hu , Y. -G. Jiang , D. -Y. Gao , X. Chen

This paper presents CCD observations of the Algol-type eclipsing binaries RZ Dra and EG Cep. The light curves have been analyzed with the PHOEBE software and Wilson-Devinney code (2003 version). A detailed photometric analysis, based on…

Solar and Stellar Astrophysics · Physics 2009-10-16 R. Pazhouhesh , A. Liakos , P. Niarchos

A rarely studied open cluster, King 1 is observed using the 1.3m telescope equipped with 2k x 4k CCD at the Vainu Bappu Observatory, India. We analyse the photometric data obtained from the CCD observations in both B and V bands. Out of 132…

Astrophysics of Galaxies · Physics 2020-03-04 Parvej Reja Saleh , Debasish Hazarika , Ajaz Ahmad Dar , Padmakar Singh Parihar , Eeshankur Saikia

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

Photometric analysis of $BVR_C$ light curves of newly discovered eclipsing binary GSC 0008-00901 is presented. The orbital period is improved to 0.28948(11) days. Photometric parameters are determined, as well. The analysis yielded to…

Astrophysics · Physics 2008-11-26 S. Parimucha , T. Pribulla , M. Vaňko , P. Dubovsky , L. Hambalek
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