2007MNRAS.374..530T


Query : 2007MNRAS.374..530T

2007MNRAS.374..530T - Mon. Not. R. Astron. Soc., 374, 530-534 (2007/January-2)

Observational studies of early-type binary stars: VV Orionis.

TERRELL D., MUNARI U. and SIVIERO A.

Abstract (from CDS):

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±0.1M☉and a radius R1 = 4.98±0.02R☉and a B4.5 V secondary with a mass M2= 4.09 ±0.05M☉and a radius R2= 2.41±0.01R☉.

Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS

Journal keyword(s): binaries: eclipsing - binaries: spectroscopic

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 V* VV Ori SB* 05 33 31.4464933704 -01 09 21.859452468 4.26 5.16 5.34 5.39 5.59 B1V+B4.5V 272 0
2 HD 36779 * 05 34 03.8907558912 -01 02 08.616145200 5.24 6.05 6.22     B2/3IV/V 107 0
3 NAME Ori I As* 05 38 -02.8           ~ 653 0
4 Ass Ori OB 1a As* ~ ~           ~ 237 0

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