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Related papers: Photometric study of an Eclipsing Binary in Praese…

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The goal of this work is to conduct a photometric study of eclipsing binaries in M31. We apply a modified box-fitting algorithm to search for eclipsing binary candidates and determine their period. We classify these candidates into…

The study of W UMa binary systems give a wealth of information about its nature as well as about its parent body (if any), like clusters. In this paper, we present the I passband photometric solutions of four W UMa binaries in the open…

Solar and Stellar Astrophysics · Physics 2009-09-24 K. Sriram , Y. Ravi Kiron , P. Vivekananda Rao

Detached eclipsing double line spectroscopic binaries are accurate distance indicators. They can be used for the direct determination of distances to globular clusters in which such systems can be identified. The results of major…

Astrophysics · Physics 2007-05-23 J. Kaluzny , I. Thompson , W. Krzeminski , A . Olech , W. Pych , B. Mochejska

We present analysis of optical photometric and polarimetric observations of contact binary system FO Hydra (FO Hya). The computed period of the system is 0.469556+/-0.000003 days. An O-C curve analysis indicates an increase in its period by…

Solar and Stellar Astrophysics · Physics 2015-06-11 Vinod Prasad , J. C. Pandey , Manoj K. Patel , D. C. Srivastava

We performed the first photometric study of the CSS J003106.8+313347 W Ursae Majoris (W UMa)-type system based on ground-based observations. We extracted times of minima from our observations and proposed a linear ephemeris based on the…

Solar and Stellar Astrophysics · Physics 2023-07-31 Ehsan Paki , Sabrina Baudart , Atila Poro

CCD multi-band light curves of the neglected eclipsing binaries V405 Cep, V948 Her, KR Mon and UZ Sge were obtained and analysed using the Wilson-Devinney code. New geometric and absolute parameters were derived and used to determine their…

Solar and Stellar Astrophysics · Physics 2014-04-11 Alexios Liakos , Panagiotis Niarchos

We present light curve solutions of the W UMa-type eclipsing binary OGLE-GD-ECL-04451, observed by both the \emph{Optical Gravitational Lensing Ex-periment} (\emph{OGLE}) program in 2006 and the \emph{Antarctica Survey Telescope}…

Solar and Stellar Astrophysics · Physics 2016-02-05 Li Gang , Zhang yanping , Fu jianning

35 Eclipsing binaries presenting unambiguous total eclipses were selected from a subsample of the list of Wyrzykowski et al. (2003). The photometric elements are given for the I curve in DiA photometry, as well as approximate Teff and…

Astrophysics · Physics 2009-11-11 P. North

We used the 50 cm Binocular Network (50BiN) telescope at Delingha Station (Qinghai Province) of Purple Mountain Observatory (Chinese Academy of Sciences) to obtain simultaneous $V$- and $R$-band observations of the old open cluster NGC 188.…

Solar and Stellar Astrophysics · Physics 2016-11-28 Richard de Grijs , Xiaodian Chen , Licai Deng

Here we present the results of a wide-field (~36 sq. deg.) near-infrared (ZYJHK) survey of the Praesepe cluster using the Data Release 9 of the UKIRT Infrared Deep Sky Survey Galactic Clusters Survey. We selected cluster candidates of…

Solar and Stellar Astrophysics · Physics 2012-07-18 S. Boudreault , N. Lodieu , N. R. Deacon , N. C. Hambly

Detached eclipsing binary stars provide a robust one-step distance determination to nearby galaxies. As a by-product of Galactic microlensing searches, catalogs of thousands of variable stars including eclipsing binaries have been produced…

Astrophysics · Physics 2009-11-06 J. S. B. Wyithe , R. E. Wilson

I have developed a procedure utilizing a Genetic-Algorithm-based optimization scheme to fit the observed light curves of an eclipsing binary star with a model produced by the Wilson-Devinney code. The principal advantages of this approach…

Astrophysics · Physics 2009-10-31 Travis S. Metcalfe

New CCD photometric observations and their investigation of the W UMa-type binary, V870 Ara, are presented. Light curves of the system were taken through BVI filters from the Congarinni Observatory in Australia. The new ephemeris is…

Solar and Stellar Astrophysics · Physics 2021-07-14 Atila Poro , Mark G. Blackford , Fatemeh Davoudi , Amirreza Mohandes , Mohammad Madani , Samaneh Rezaei , Elnaz Bozorgzadeh

New BVRI CCD photometric observations of the contact system DF Hya have been obtained. The light curves were analyzed with the Wilson-Devinney code and new geometric and photometric elements were derived. Moreover, the light curve solution,…

Solar and Stellar Astrophysics · Physics 2014-04-14 Ifikratis Kamenidis , Alexios Liakos , Panagiotis Niarchos

We present the photometric analysis of six short-period systems (EI Oct, V336 TrA, NX Boo, V356 Boo, PS Boo, and V2282 Cyg). This is the first photometric analysis of these systems except for V336 TrA. Observations were conducted for 27…

We have begun a programme to obtain high-precision photometry of bright detached eclipsing binary (dEB) stars with the Wide field InfraRed Explorer (WIRE) satellite. Due to the small aperture of WIRE only stars brighter than V=6 can be…

Astrophysics · Physics 2009-11-11 H. Bruntt , J. Southworth

In this paper, we present standard Johnson UBV photometry of the eclipsing binary BD+36 3317 which is known as a member of Delta Lyrae (Stephenson 1) cluster. We determined colors and brightness of the system, calculated E(B - V) color…

Solar and Stellar Astrophysics · Physics 2012-07-03 O. Özdarcan , E. Sipahi , H. A. Dal

Blue and Visual photoelectric light curves have been achieved for the eclipsing binary SW Lac in 1995. Nine moments of minimum light were derived. Period of 0.320854 days have been determined as the mean of those derived from blue and…

Solar and Stellar Astrophysics · Physics 2014-02-13 A. Essam , A. El-Bassuny Alawy , M. A. Hamdy

We present CCD photometric observations of the W UMa type contact binary EK Comae Berenices using the 2 metre telescope of $IUCAA$ Girawali Observatory, India. The star was classified as a W UMa type binary of subtype-W by \citet{sam1996}.…

Solar and Stellar Astrophysics · Physics 2015-05-18 Sukanta Deb , Harinder P. Singh , T. R. Seshadri , Ranjan Gupta

We have analyzed the double-lined eclipsing binary system OGLE-051019.64-685812.3 in the LMC which consists of two G4 giant components with very similar effective temperatures. A detailed analysis of the OGLE I-band light curve of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 G. Pietrzynski , I. Thompson , D. Graczyk , W. Gieren , A. Udalski , O. Szewczyk , D. Minniti , Z. Kolaczkowski , F. Bresolin , R. -P. Kudritzki