Asteroseismology of Procyon with SOPHIE - Service d'aéronomie Accéder directement au contenu
Article Dans Une Revue Astronomy and Astrophysics - A&A Année : 2008

Asteroseismology of Procyon with SOPHIE

Résumé

This paper reports a 9-night asteroseismic observation program conducted in January 2007 with the new spectrometer SOPHIE at the OHP 193-cm telescope, on the F5 IV-V target Procyon A. Aims.This first asteroseismic program with SOPHIE was intended to test the performance of the instrument with a bright but demanding asteroseismic target and was part of a multisite network. Methods.The SOPHIE spectra have been reduced with the data reduction software provided by OHP. The Procyon asteroseismic data were then analyzed with statistical tools. The asymptotic analysis has been conducted considering possible curvature in the échelle diagram analysis. Results.These observations have proven the efficient performance of SOPHIE used as an asteroseismometer, and succeed in a clear detection of the large spacing. An échelle diagram based on the 54-Hz spacing shows clear ridges. Identification of the peaks exhibits large spacings varying from about 52 Hz to 56 Hz. Outside the frequency range [0.9, 1.0 mHz] where the identification is confused, the large spacing increases at a rate of about Hz. This may explain some of the different values of the large spacing obtained by previous observations.
Fichier principal
Vignette du fichier
aa8337-07.pdf (321.79 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-00203709 , version 1 (07-11-2020)

Identifiants

Citer

B. Mosser, François Bouchy, Milena Martic, Thierry Appourchaux, C. Barban, et al.. Asteroseismology of Procyon with SOPHIE. Astronomy and Astrophysics - A&A, 2008, 478, pp.197-202. ⟨10.1051/0004-6361:20078337⟩. ⟨hal-00203709⟩
191 Consultations
53 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More