Title: The acoustic spectrum of alpha Cen A
Authors: Bouchy, F ×
Carrier, Fabien #
Issue Date: Jul-2002
Publisher: E d p sciences
Series Title: Astronomy & astrophysics vol:390 issue:1 pages:205-212
Abstract: This paper presents the analysis of Doppler p-mode observations of the G2V star alpha Cen A obtained with the spectrograph CORALIE in May 2001. Thirteen nights of observations have made it possible to collect 1850 radial velocity measurements with a standard deviation of about 1.5 m s(-1). Twenty-eight oscillation modes have been identified in the power spectrum between 1.8 and 2.9 mHz with amplitudes in the range 12 to 44 cm s(-1). The average large and small spacing are respectively equal to 105.5 and 5.6 muHz. A comparison with stellar models of alpha Cen A is presented.
ISSN: 0004-6361
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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