2006A&A...460..759P


C.D.S. - SIMBAD4 rel 1.7 - 2019.09.23CEST18:14:37

2006A&A...460..759P - Astronomy and Astrophysics, volume 460, 759-767 (2006/12-4)

Asteroseismology and evolutionary status of Procyon A.

PROVOST J., BERTHOMIEU G., MARTIC M. and MOREL P.

Abstract (from CDS):

Models of Procyon A satisfying the actual observational constraints, particularly the asteroseismic ones, are discussed. The oscillations of these models were computed and analysed. We looked for seismic signatures of the evolutionary status of Procyon A. We show that the behavior of the small frequency spacings, particularly δν01 allows us to distinguish between main sequence and post-main sequence models, all satisfying the observational constraints on mass, effective temperature, radius, and surface metallicity of Procyon A. We also introduce a new seismic evolution criterion, ε, based on the comparison of the low and high frequency parts of the power spectrum. The comparison of the seismic properties of the models with the available asteroseismic observations does not allow us to definitely decide on the stage of evolution of Procyon A. Much more accurate frequencies must be obtained especially in the low-frequency domain to distinguish between the models.

Abstract Copyright:

Journal keyword(s): stars: oscillations - stars: evolution - stars: individual: Procyon A

Simbad objects: 3

goto Full paper

goto View the reference in ADS

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 - 2019
#notes
1 Cl Melotte 25 OpC 04 26 54.00 +15 52 00.0           ~ 2575 0
2 * alf CMi B WD* 07 39 17.8800 +05 13 26.800   10.7 10.92     DQZ 134 0
3 * alf CMi SB* 07 39 18.11950 +05 13 29.9552 0.82 0.79 0.37 -0.05 -0.28 F5IV-V+DQZ 1734 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2006A&A...460..759P and select 'bookmark this link' or equivalent in the popup menu


2019.09.23-18:14:37

© Université de Strasbourg/CNRS

    • Contact