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Article overview
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Observational studies of early-type binary stars: VV Orionis | Dirk Terrell
; Ulisse Munari
; Alessandro Siviero
; | Date: |
6 Oct 2006 | 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 $M{_1}=10.9 pm 0.1 M_{sun}$ and a radius $R_{1}=4.98 pm 0.02 R_{sun}$ and a B4.5 V secondary with a mass $M{_2}=4.09 pm 0.05 M_{sun}$ and a radius $R_{2}=2.41 pm 0.01 R_{sun}$. | Source: | arXiv, astro-ph/0610202 | Services: | Forum | Review | PDF | Favorites |
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