A spectroscopic survey of algol-type binary S Equ


SOYDUGAN F. , SOYDUGAN F. , Frasca A.

Workshop on Solar and Stellar Physics through Eclipses, Antalya, Türkiye, 27 - 29 Mart 2006, cilt.370, ss.201-202 identifier

  • Cilt numarası: 370
  • Basıldığı Şehir: Antalya
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.201-202

Özet

This study presents the results of the medium-resolution optical spectra of S Equ obtained with the echelle spectrograph of the Catania Astro-physical Observatory. In this work, new radial velocity curves for the components of the system with a precision better than in previous works are obtained using the cross-correlation technique. We have determined the absolute parameters of S Equ combining the orbit and light curve solutions. The preliminary results of the Ha line analysis indicate an extra emission and absorption as a likely result of a mass-transfer process and chromospheric activity of the cooler component.