Mt. Suhora Survey - Searching for Pulsating M Dwarfs. I

Details Mt. Suhora Survey - Searching for Pulsating M Dwarfs. I Mt. Suhora Survey - Searching for Pulsating M Dwarfs. I

Mar 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aca....61...37b&link_type=abstract

Acta Astronomica, vol 61, no 1, p. 37-58

Astronomy and Astrophysics

Astronomy

3

Stars: Low-Mass, Stars: Oscillations (Including Pulsations), Asteroseismology

Scientific paper

We present the first results of our M dwarf survey in search for stellar pulsation in low mass main sequence stars. Theoretical calculations predict that ɛ mechanism might drive a fundamental radial mode in these stars and therefore pulsations could be observed photometrically. Although M dwarfs are known for their flare and spot activity they have not yet been the subject of dedicated time-series surveys for pulsation. In this work we include the light curves and amplitude spectra of 46 M dwarfs, which have been observed during the first two years of our survey. We did not detect any pulsations yet. As a by-product of our search, we describe the light curves of some flare M dwarfs. The survey will last for two more years and during that period more than a hundred of M0-M4 type main sequence stars will be observed.

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