The Domain of δ Scuti Stars: First CoRoT IRa01 Results

Details The Domain of δ Scuti Stars: First CoRoT IRa01 Results The Domain of δ Scuti Stars: First CoRoT IRa01 Results

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1170..432k&link_type=abstract

STELLAR PULSATION: CHALLENGES FOR THEORY AND OBSERVATION: Proceedings of the International Conference. AIP Conference Proceedin

Computer Science

Pulsations, Oscillations, And Stellar Seismology, Variable And Peculiar Stars, Main-Sequence: Intermediate-Type Stars

Scientific paper

We present the first results of determing the δ Scuti population observed with CoRoT during the Initial Run (IRa01). From more than 10000 stars observed continuously in the exoplanet-channel during 58 days, 397 stars show pulsation in the δ Scuti domain. For 39 of the 397 stars low resolution classification spectra and Strömgren uvby photometry were available; thus fundamental parameters like effective temperature and surface gravity could be derived. Classical Fourier techniques and least squares multi-sine fits were applied to identify the pulsation frequencies. For additional 90 stars a pair of radial modes were found and by comparing with pulsation models it was possible to estimate the corresponding fundamental parameters.

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