2005MNRAS.360..583T

Query : 2005MNRAS.360..583T

2005MNRAS.360..583T - Mon. Not. R. Astron. Soc., 360, 583-586 (2005/June-3)

Observational studies of early-type binary stars: MP Centauri.

TERRELL D., MUNARI U., ZWITTER T. and WOLF G.

Abstract (from CDS):

We present photometric and spectroscopic data on the early-type binary MP Centauri. The photometric data are analysed simultaneously with radial velocities to derive preliminary absolute dimensions for the binary components. Analysis of the spectra shows that the stars rotate synchronously and that the line of sight to the system crosses two kinematically sharp and well-separated interstellar reddening sources. It is shown that MP Cen consists of a B3 primary with M1= 11.4±0.4M☉, R1= 7.7±0.1R☉ and a lobe-filling B6-B7 secondary with M2= 4.4±0.2M☉, R2= 6.6±0.1R☉.

Abstract Copyright: 2005 RAS

Journal keyword(s): binaries: eclipsing - binaries: spectroscopic - stars: early-type - stars: evolution - stars: individual: MP Cen

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* TU Mus SB* 11 31 10.9241479224 -65 44 32.099167788 7.58 9.52 9.34 9.25   O8V(n)z+B0V(n) 185 0
2 V* MP Cen EB* 11 43 45.7525915968 -61 44 36.008805732 9.72 10.40 10.29 10.26 9.729 OB 39 0
3 HD 102139 * 11 44 59.0171738640 -61 49 09.462739440   9.56 9.63     B3/5III 18 0
4 NAME Sgr Arm PoG 19 00 -30.0           ~ 710 1

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