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Abstrakty
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.
Czasopismo
Rocznik
Tom
Strony
37--58
Opis fizyczny
Bibliogr. 15 poz., rys., tab., wykr.
Twórcy
autor
- 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
- Mt. Suhora Observatory of the Pedagogical University, ul. Podchorążych 2, 30-084 Cracow, Poland
autor
- Mt. Suhora Observatory of the Pedagogical University, ul. Podchorążych 2, 30-084 Cracow, Poland
autor
- Instituto de Astronomia - Universidad Nacional Autónoma de México, Ap. P. 877, Ensenada, BC 22860, Mexico
autor
- Iowa State University, 12 Physics Hall, Ames, IA 50011, USA
autor
- Mt. Suhora Observatory of the Pedagogical University, ul. Podchorążych 2, 30-084 Cracow, Poland
autor
- University of Western Cape, Physics Department, Cape Town 7535, South Africa
autor
- Missouri State University, Department of Physics, Astronomy, and Materials Science, 901 S. National Av., Springfield, MO 65897, USA
autor
- Missouri State University, Department of Physics, Astronomy, and Materials Science, 901 S. National Av., Springfield, MO 65897, USA
Bibliografia
- Baraffe, I., and Chabrier, G. 1996, ApJ, 461, L51.
- Berger, D.H., et al. 2006, ApJ, 644, 475.
- Chabrier, G., and Baraffe, I. 1997, A&A, 327, 1039.
- Chabrier, G., and Baraffe, I. 2000, Ann. Rev. Astron. Astrophys., 38, 337.
- Cody, A.N., and Hillenbrand, L. 2010, ApJS, 191, 389.
- Delfosse, X., et al. 2004, in: “Spectroscopically and Spatially Resolving the Components of the Close Binary Stars” ASP Conference Series, vol. 318, 166.
- Gliese, W., and Jahreiss, H. 1979, A&AS, 38, 423.
- Henry, J.W., et al. 2006, AJ, 132, 2360.
- Hertzsprung, E. 1924, Bulletin of the Astronomical Institutes of the Netherlands, 2, 87.
- Hillenbrand, L.A., and White, R.J. 2004, ApJ, 604, 741.
- Kawaler, S.D. 1988, ApJ, 334, 220.
- López-Morales, M., and Ribas, I. 2005, ApJ, 631, 1120.
- Palla, F., and Baraffe, I. 2005, A&A, 432, L57.
- Stetson, P.B. 1987, PASP, 99, 191.
- Unno, W., Osaki, Y., Ando, H., Saio, H., and Shibahashi, H. 1989, “Nonradial Oscillations of Stars”, (2nd ed.), Tokyo: U. Tokyo Press.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-e4092726-f6e5-4b63-afaf-2b7e0e911f63