Magnetic structure in cool stars. II - Observational evidence for transverse magnetic fields
Abstract
The apparently intrinsic linear polarization of the light from nearby F, G, K and M stars is attributed to transverse magnetic fields near the stellar limb in activity belts on either side of the stellar equator. The polarization results from the pi components of strong spectral lines being more saturated than sigma components (Leroy, 1962). The proposed mechanism is compatible with existing observational data. Stringent tests and prospects for further observations are indicated.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- August 1981
- Bibcode:
- 1981A&A...101..223T
- Keywords:
-
- Cool Stars;
- Late Stars;
- Linear Polarization;
- Stellar Magnetic Fields;
- Stellar Radiation;
- Stellar Spectra;
- Calcium;
- K Lines;
- Polarized Radiation;
- Stellar Temperature;
- Astrophysics