Bibcode
Fabas, N.; Lèbre, A.; Gillet, D.
Referencia bibliográfica
Solar Polarization 6. Proceedings of a conference held in Maui, Hawaii, USA on May 30 to June 4, 2010. Edited by J. R. Kuhn, D. M. Harrington, H. Lin, S. V. Berdyugina, J. Trujillo-Bueno, S. L. Keil, and T. Rimmele. San Francisco: Astronomical Society of the Pacific, 2011., p.265
Advertised on:
4
2011
Número de citas
1
Número de citas referidas
1
Descripción
We have performed a spectropolarimetric survey of the variable Mira star
omicron Ceti along three pulsation cycles. We present those new data
collected with the Narval instrument mounted on the Telescope Bernard
Lyot (TBL) in Pic du Midi, France. We have detected time variable
polarimetric signatures (on QUV Stokes spectra) associated with Balmer
hydrogen emission lines supposed to be formed behind the front of a
shock wave propagating throughout the stellar atmosphere. We associate
the linear polarization of Balmer emission lines in Mira stars to the
presence and the structure of the radiative shock wave.