2003A&A...402..293T

Query : 2003A&A...402..293T

2003A&A...402..293T - Astronomy and Astrophysics, volume 402293-297 (2003/4-4)

A new seismic analysis of Alpha Centauri.

THOUL A., SCUFLAIRE R., NOELS A., VATOVEZ B., BRIQUET M., DUPRET M.-A. and MONTALBAN J.

Abstract (from CDS):

Models of α Cen A & B have been computed using the masses determined by Pourbaix et al. 2002A&A...386..280P) and the data derived from the spectroscopic analysis of Neuforge & Magain (1997A&A...328..261N). The seismological data obtained by Bouchy & Carrier (2001A&A...374L...5B, 2002A&A...390..205B]) do help improve our knowledge of the evolutionary status of the system. All the constraints are satisfied with a model which gives an age of about 6Gyr for the binary.

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Journal keyword(s): stars: binaries: visual - stars: individual: α Cen - stars: oscillations - stars: evolution

Simbad objects: 3

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Number of rows : 3
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 * alf Cen B PM* 14 39 35.06311 -60 50 15.0992 2.89 2.21 1.33     K1V 1092 2
2 * alf Cen A SB* 14 39 36.49400 -60 50 02.3737 0.96 0.72 0.01     G2V 1352 1
3 * alf Cen ** 14 39 36.50 -60 50 02.3   0.4 -0.1     G2V+K1V 1031 0

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