Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10704662 | New Astronomy | 2005 | 9 Pages |
Abstract
This paper presents the analysis of Doppler p-modes of the F9 V star β Virginis obtained with the spectrograph Coralie in March 2003. Eleven nights of observations have made it possible to collect 1293 radial velocity measurements with a standard deviation of about 2.2 msâ1. The power spectrum of the high precision velocity time series clearly presents several identifiable peaks between 0.7 and 2.4 mHz showing regularity with a large and small spacings of Îν = 72.1 μHz and δν02 = 6.3 μHz, respectively. Thirty-one individual modes have been identified with amplitudes in the range 23-46 cm sâ1, i.e., with a signal to noise between 3 and 6.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Astronomy and Astrophysics
Authors
F. Carrier, P. Eggenberger, A. D'Alessandro, L. Weber,