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| Paper: |
Mt. Suhora Survey: Searching for M dwarf Pulsators |
| Volume: |
462, Progress in Solar/Stellar Physics with Helio- and Asteroseismology |
| Page: |
224 |
| Authors: |
Baran, A. S.; Krzesiński, J.; Kawaler, S. D. |
| Abstract: |
We present the first results of our M dwarf survey in search for stellar pulsation in low-mass main-sequence stars. Theoretical calculations made by one of the present authors (S. K.) predict that varepsilon-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 presentation we include the light curves along with amplitude spectra and Phase Dispersion Minimization analysis of a dozen of M red dwarfs, which have been observed during the first year of our survey. None of them seems to be a pulsating star. As a by-product of our search, we have detected many flares of M dwarfs and variation in seven field stars. 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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