Long-term monitoring of {gamma} Dor stars (Cuypers+, 2009)

Details Long-term monitoring of {gamma} Dor stars (Cuypers+, 2009) Long-term monitoring of {gamma} Dor stars (Cuypers+, 2009)

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ycat..34990967c&link_type=abstract

VizieR On-line Data Catalog: J/A+A/499/967. Originally published in: 2009A&A...499..967C

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Stars: Variable, Photometry: Geneva

Scientific paper

gamma Dor stars are excellent targets for asteroseismology since the gravity modes present in these stars probe the deep stellar interiors. Mode identification will improve the knowledge of these stars considerably. A selected group of gamma Dor stars and some candidates were observed with the Mercator telescope to find and/or confirm the periodicities in the light variations and to derive reliable amplitude ratios in different pass bands. A frequency analysis was performed on all new data obtained in the Geneva photometric system. In order to have more reliable and accurate frequencies, the new data were combined with similar data from the literature and with Hipparcos observations. A set of frequencies that minimized the residuals in a harmonic fit was searched for while allowing means and amplitudes to vary from one observation set to another.
(3 data files).

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