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

• Autorzy: Baran A. S. , Winiarski M. , Siwak M. , Fox-Machado L. , Kozieł-Wierzbowska D. , Krzesinski J. , Dróżdz M. , Winans A.
• Języki publikacji: EN

Abstrakty

EN

We present our final report on the search for pulsating M dwarfs. We used moderate (<1 m) ground-based telescopes. Our detection was limited to 1 ppt, which is roughly 0.1% of flux variation. We employed both the Fourier technique and Phase Dispersion Minimization (PDM) method. Our data analyses revealed no detection of pulsations in M dwarfs down to the above amplitude level. The results of our survey cannot reject or confirm the theoretical calculations suggesting the M dwarfs can pulsate, however, if the pulsations exist in these stars their amplitudes must be lower than 1 ppt. As a by-product of our search we found several new variable stars, including pulsating stars, binary systems and flare stars.

Słowa kluczowe

EN

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

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2013
• Tom: Vol. 63, No. 1
• Strony: 41--52
• Opis fizyczny: Bibliogr. 6 poz., tab., wykr.

Twórcy

autor

Baran A. S.

• Mt. Suhora Observatory of the Pedagogical University, ul. Podchorążych 2, 30-084 Cracow, Poland
• Missouri State University, Department of Physics, Astronomy, and Materials Science, 901 S. National Av., Springfield, MO 65897, USA

autor

Winiarski M.

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

autor

Siwak M.

• 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

Kozieł-Wierzbowska D.

• Astronomical Observatory of the Jagiellonian University, ul. Orla 171, 30-244 Cracow, Poland

autor

Krzesinski J.

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

autor

Dróżdz M.

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

autor

Winans A.

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

Bibliografia

• Baran, A.S., et al. 2011a, Acta Astron., 61, 37.
• Baran, A.S., Fox-Machado, L., Lykke, J., Nielsen,M., and Telting, J.H. 2011b, Acta Astron., 61, 325.
• Bedding, T., et al. 2011, Nature, 471, 608.
• Fox-Machado, L.F., Baran, A.S., Winiarski, M., Krzesinski, J., Dróżdż, M. 2012, New Astronomy, 17, 65.
• Krzesinski, J., Baran, A.S., Winiarski, M., Fox-Machado, L., Dróżdż, M., Siwak, M., and Kozieł-Wierzbowska, D. 2012, Acta Astron., 62, 201.
• Rodriguez-Lopez, C., MacDonald, J., and Moya, A. 2012, MNRAS, 419, L44.