Spectroscopic Study of the Early-Type Binary HX Vel A


ÖZKARDEŞ B. , SÜRGİT D. , ERDEM A. , Budding E., SOYDUGAN F. , Demircan O.

282nd Symposium of the International-Astronomical-Union, Tatranska Lomnica, Slovakia, 18 - 22 July 2011, pp.67-68 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1017/s1743921311026925
  • City: Tatranska Lomnica
  • Country: Slovakia
  • Page Numbers: pp.67-68

Abstract

This paper presents high resolution spectroscopy of the HX Vel (IDS 08390-4744 AB) multiple system. New spectroscopic observations of the system were made at Mt. John University Observatory in 2007 and 2008. Radial velocities of both components of HX Vel A were measured using gaussian fitting. The spectroscopic mass ratio of the close binary was determined as 0.599 +/- 0.052, according to a Keplerian orbital solution. The resulting orbital elements are a(1)sini=0.0098 +/- 0.0003 AU, a(2)sini=0.0164 +/- 0.0003 AU, M(1)sin(3)i=1.19 +/- 0.07 M-circle dot and M(2)sin(3)i=0.71 +/- 0.04 M-circle dot.