HARPS seismic data of the F type star HD49933 revisited in the light of CoRoT results

Details HARPS seismic data of the F type star HD49933 revisited in the light of CoRoT results HARPS seismic data of the F type star HD49933 revisited in the light of CoRoT results

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008coast.157..297d&link_type=abstract

Communications in Asteroseismology, Vol.157, p. 297-298

Computer Science

1

Scientific paper

Many studies have shown that the identification of pressure modes from line profile variations using the moment method is very efficient for self-excited oscillating stars (Aerts et al. 1992). It has however never been used to identify modes in solar-like pulsating stars. The fact that the velocities of the oscillations are very small compared to the rotational velocity makes it harder to use the moments method. We explore the possibility to adapt this method to the solar-like oscillations. The F type star HD 49933 is a particularly appropriate target, having been observed both in photometry with CoRoT (Baglin et al. 2006) and in spectrometry (harps). We use both sets of data to investigate to which extent this method can help in identifying the detected modes.

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