Absolute and geometric parameters of W UMa type contact binary TYC 1174-344-1

GÜROL B., Derman E., Saguner T., Gursoytrak S. H., Terzioglu Z., Gokay G., ...Daha Fazla

NEW ASTRONOMY, sa.4, ss.242-249, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.newast.2010.11.001
  • Dergi Adı: NEW ASTRONOMY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.242-249
  • Anahtar Kelimeler: Stars: binaries: eclipsing, Stars: fundamental parameters, Technique: photometry, Stars: individual (TYC1174-344-1), URSAE MAJORIS, OVERCONTACT BINARY, LIGHT CURVES, STAR LIGHT, CATALOG, SYSTEMS, TEMPERATURE
  • Ankara Üniversitesi Adresli: Evet

Özet

We present the results of our investigation on the geometrical and physical parameters of W UMa-type binary TYC1174-344-1 from analyzed CCD (BVRI) light curves and radial velocity data. The photometric data were obtained in 2009 at Ankara University Observatory (AUO) and the spectroscopic observations were made in 2008 at Astrophysical Observatory of Asiago (Italy). Light and radial velocity observations were analyzed simultaneously by using the well-known Wilson-Devinney (2007 revision) code to obtain absolute and geometrical parameters. According to our solutions, the system is found to be a low mass-ratio A-type W UMa system. Combining our photometric solution with the spectroscopic data, we derived mass and radii of the eclipsing system as M-1 = 1.381 M-circle dot, M-2 = 0.258 M-circle dot, R-1 = 1.449 R-circle dot and R-2 = 0.714 R-circle dot. We finally discussed the evolutionary condition of the system. (C) 2010 Elsevier B.V. All rights reserved.