Observational studies of early-type binary stars: VV Orionis
Abstract
New and previously published observations of the bright eclipsing binary VV Orionis are analyzed. We present new radial velocities and interstellar reddening measurements from high-resolution spectra of this detached, short-period (P = 1.48 d) binary. We discuss the validity of prior claims for the existence of a third body and show that our new velocities and light-curve solution cast doubt on them. The components of VV Ori are shown to be a B1 V primary with a mass M1 = 10.9 +/- 0.1Msolar and a radius R1 = 4.98 +/- 0.02Rsolar and a B4.5 V secondary with a mass M2 = 4.09 +/- 0.05Msolar and a radius R2 = 2.41 +/- 0.01Rsolar.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- January 2007
- DOI:
- 10.1111/j.1365-2966.2006.11162.x
- arXiv:
- arXiv:astro-ph/0610202
- Bibcode:
- 2007MNRAS.374..530T
- Keywords:
-
- binaries: eclipsing;
- binaries: spectroscopic;
- Astrophysics
- E-Print:
- 6 pages, 6 figures, 3 tables