New Spectroscopic Solution of the Eclipsing Binary HX Vel A


SÜRGİT D. , ERDEM A. , ÖZKARDEŞ B. , Butland R., Budding E.

Conference on Living Together: Planets, Host Stars and Binaries, Litomysl, Czech Republic, 8 - 12 September 2014, vol.496, pp.260-261 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 496
  • City: Litomysl
  • Country: Czech Republic
  • Page Numbers: pp.260-261

Abstract

We present a preliminary analysis of new spectroscopic observations of the southern binary HX Vel A. High-resolution spectroscopic observations were made at the Mt. John University Observatory in 2014. Radial velocities for HX Vel A were determined from the Gaussian profile-fitting method. The Keplerian radial velocity model gives the close binary mass ratio as 0.57 +/- 0.06. The resulting orbital elements are ai sin i = 0.0086 +/- 0.0003 au, a(2) sin i = 0.0151 +/- 0.0003 au, M-1 sin(3) i = 0.887 +/- 0.046 M-circle dot, and M-2 sin(3) i = 0.504 +/- 0.032 M-circle dot.