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

• Autorzy: Baran A. S. , Winiarski M. , Krzesiński J. , Fox-Machado L. , Kawaler S. D. , Dróżdż M. , Faltenbacher A. , Thompson M. A. , Reed M. D.
• Języki publikacji: EN

Abstrakty

EN

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 ε 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.

Słowa kluczowe

EN

stars: low-mass; stars: oscillations: including pulsations; asteroseismology

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2011
• Tom: Vol. 61, No. 1
• Strony: 37--58
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Baran A. S.

• Mt. Suhora Observatory of the Pedagogical University, ul. Podchorążych 2, 30-084 Cracow, Poland
• Iowa State University, 12 Physics Hall, Ames, IA 50011, USA

autor

Winiarski M.

• Mt. Suhora Observatory of the Pedagogical University, ul. Podchorążych 2, 30-084 Cracow, Poland

autor

Krzesiński J.

• Mt. Suhora Observatory of the Pedagogical University, ul. Podchorążych 2, 30-084 Cracow, Poland

autor

Fox-Machado L.

• Instituto de Astronomia - Universidad Nacional Autónoma de México, Ap. P. 877, Ensenada, BC 22860, Mexico

autor

Kawaler S. D.

• Iowa State University, 12 Physics Hall, Ames, IA 50011, USA

autor

Dróżdż M.

• Mt. Suhora Observatory of the Pedagogical University, ul. Podchorążych 2, 30-084 Cracow, Poland

autor

Faltenbacher A.

• University of Western Cape, Physics Department, Cape Town 7535, South Africa

autor

Thompson M. A.

• Missouri State University, Department of Physics, Astronomy, and Materials Science, 901 S. National Av., Springfield, MO 65897, USA

autor

Reed M. D.

• Missouri State University, Department of Physics, Astronomy, and Materials Science, 901 S. National Av., Springfield, MO 65897, USA

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