Solar-like oscillations in the F9 V beta Virginis

F. Carrier; P. Eggenberger; A. D'Alessandro; L. Weber

doi:10.1016/j.newast.2004.11.003

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Solar-like oscillations in the F9 V beta Virginis

F. Carrier·P. Eggenberger·A. D'Alessandro·L. Weber

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Abstract

This paper presents the analysis of Doppler p-modes of the F9 V star beta 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 m s^-1. 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 Delta_nu = 72.1 uHz and delta_nu_02 = 6.3 uHz respectively. Thirty-one individual modes have been identified with amplitudes in the range 23 to 46 cm s^-1, i.e. with a signal to noise between 3 and 6.

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F. Carrier, P. Eggenberger, A. D'Alessandro, L. Weber. 2005-02-01. Solar-like oscillations in the F9 V beta Virginis. https://doi.org/10.1016/j.newast.2004.11.003

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