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Related papers: Photometric study of eclipsing binary RV Tri

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New V photoelectric observations of the eclipsing system YY CMi, obtained at La Silla, Chile, and Merate Observatory, Italy, are presented. New times of minima and ephemeris based on our observations are also given. The V light curve was…

Astrophysics · Physics 2009-10-30 P. G. Niarchos , Luciano Mantegazza , Ennio Poretti , V. Manimanis

With the advent of large-scale photometric surveys of the sky, modern science witnesses the dawn of big data astronomy, where automatic handling and discovery are paramount. In this context, classification tasks are among the key…

Solar and Stellar Astrophysics · Physics 2023-02-03 I. V. Daza-Perilla , L. V. Gramajo , M. Lares , T. Palma , C. E. Ferreira Lopes , D. Minniti , J. J. Clariá

We have performed a study of the orbital properties of seven eclipsing cataclysmic variable (CV) binary systems by analyzing photometric time series from the Transiting Exoplanet Survey Satellite (TESS). We employed Python code to determine…

Solar and Stellar Astrophysics · Physics 2025-01-22 Mennatalla Mahmoud Ellaqany , Valeria Garcia-Lopez , Emily S. Hatten , Mridul Agarwal , David A. Moffett

This study continues our in-depth investigation of total-eclipse W Ursae Majoris-type contact binaries by analyzing eight new systems, complementing our previous work. Multiband $BVR_cI_c$ photometric data were acquired through ground-based…

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

Eclipsing binary star systems provide the most accurate method of measuring both the masses and radii of stars. Moreover, they enable testing tidal synchronization and circularization theories, as well as constraining models of stellar…

Astrophysics · Physics 2008-11-04 Jonathan Devor

Our goal was to improve the fundamental parameters of the massive close double-lined eclipsing B2.5V+B2.5V binary CV Velorum.We gathered new high-resolution echelle spectroscopy on 13 almost consecutive nights covering essentially two…

Astrophysics · Physics 2009-11-13 K. Yakut , C. Aerts , Th. Morel

Main aim of this paper is the first light curve and apsidal motion analysis of thirteen eccentric eclipsing binaries and to reveal their basic physical properties. All of the systems were studied by method of period analysis of times of…

Solar and Stellar Astrophysics · Physics 2012-04-26 P. Zasche

We have discovered a doubly eclipsing, bound, quadruple star system in the field of K2 Campaign 7. EPIC 219217635 is a stellar image with $Kp = 12.7$ that contains an eclipsing binary (`EB') with $P_A = 3.59470$ d and a second EB with $P_B…

New photometric observations of NSVS 01286630 were performed and two sets of four-color (B, V , Rc, Ic) light curves (LCs) were obtained. Using the 2013 version of the Wilson-Devinney (W-D) code, we analyzed these data. The photometric…

Solar and Stellar Astrophysics · Physics 2018-09-19 Bin Zhang , Sheng-bang Qian , Wen-ping Liao , Li-ying Zhu , Ai-jun Dong , Qi-jun Zhi

We present results of optical and infrared photometric monitoring of the eclipsing low-mass X-ray binary V395 Car (2S 0921-630). Our observations reveal a clear, repeating orbital modulation with an amplitude of about one magnitude in B,…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Teresa A. Ashcraft , Robert I. Hynes , Edward L. Robinson

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

Here we present the observations and the first light curve analysis of the short-period variable star NSVS 2983201. Using the light curve numerical modeling we find the best fitting model to be of shallow (ff=10%) contact binary…

Solar and Stellar Astrophysics · Physics 2023-01-02 B. Debski , K. Walczak

Photometric observations in V and I bands of six eclipsing binaries at the lower limit of the orbital periods of W UMa stars are presented. Three of them are newly discovered eclipsing systems. The light curve solutions revealed that all…

Solar and Stellar Astrophysics · Physics 2015-09-16 Diana P. Kjurkchieva , Dinko P. Dimitrov , Sunay I. Ibryamov

A short period eclipsing binary star CV Boo is tested for the possible existence of additional bodies in the system with a help of the light equation method. We use data on the moments of minima from the literature as well as from our…

We present our multicolour photometric data of the primary and secondary eclipses of OW Gem that took place in 1995, 2002, and 2006, as well as the new radial-velocity data collected since 1993 by R. F. Griffin and A. Duquennoy. The…

Astrophysics · Physics 2010-03-05 C. Gałan , M. Mikołajewski , T. Tomov , D. Kolev , D. Graczyk , A. Majcher , J. Ł. Janowski , M. Cikała

We report on analysis of the two-color VR CCD observations of the newly discovered variable 2MASS J18024395+4003309=VSX J180243.9+400331 obtained using the 1-m telescope of the Mt. Lemmon Observatory (LOAO) in the field of the intermediate…

Solar and Stellar Astrophysics · Physics 2015-12-15 Ivan L. Andronov , Yonggi Kim , Young-Hee Kim , Joh-Na Yoon , Lidia L. Chinarova , Mariia G. Tkachenko

The observed light curves of most eclipsing binaries and stars with transiting planets can be well described and interpreted by current advanced physical models which also allow for the determination of many physical parameters of eclipsing…

Instrumentation and Methods for Astrophysics · Physics 2015-11-18 Zdeněk Mikulášek

We report the discovery of the first high-amplitude delta Scuti star in an eclipsing binary, which we have designated UNSW-V-500. The system is an Algol-type semi-detached eclipsing binary of maximum brightness V = 12.52 mag. A best-fitting…

We present first results of a comprehensive photometric O-star survey performed with a robotic twin refractor at the Universit\"atssternwarte Bochum located near Cerro Armazones in Chile. For three high-mass stars, namely Pismis24-1,…

Solar and Stellar Astrophysics · Physics 2015-06-16 A. Barr Domínguez , R. Chini , F. Pozo Nuñez , M. Haas , M. Hackstein , H. Drass , R. Lemke , M. Murphy