Key parameters of WUMa-type contact binaries discovered by HIPPARCOS

SELAM S. O.

ASTRONOMY & ASTROPHYSICS, cilt.416, sa.3, ss.1097-1105, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 416 Sayı: 3
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1051/0004-6361:20034578
  • Dergi Adı: ASTRONOMY & ASTROPHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1097-1105
  • Anahtar Kelimeler: stars : binaries : close, stars : binaries : eclipsing, UMA-TYPE SYSTEMS, VARIABLE-STAR CATALOG, RADIAL-VELOCITY, ECLIPSING BINARIES, BAADE WINDOW, LIGHT CURVES, CALIBRATION, PHOTOMETRY
  • Ankara Üniversitesi Adresli: Evet

Özet

A sample of W UMa-type binaries which were discovered by the HIPPARCOS satellite was constructed with the aid of well defined selection criteria described in this work. The selection process showed up that several systems of which the variability types have been assigned as EB in HIPPARCOS catalogue are genuine contact binaries of W UMa-type. The light curves of the 64 selected systems based on HIPPARCOS photometry were analyzed with the aid of light curve synthesis method by Rucinski and their geometric elements (namely mass ratio q, degree of contact f, and orbital inclination i) were determined. The solutions were obtained for the first time for many of the systems in the sample and would be a good source for their future light curve analyses based on more precise follow-up observations.