Magnetic structure in cool stars. II - Observational evidence for transverse magnetic fields

Details Magnetic structure in cool stars. II - Observational evidence for transverse magnetic fields Magnetic structure in cool stars. II - Observational evidence for transverse magnetic fields

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...101..223t&link_type=abstract

Astronomy and Astrophysics, vol. 101, no. 2, Aug. 1981, p. 223-225.

Astronomy and Astrophysics

Astrophysics

27

Cool Stars, Late Stars, Linear Polarization, Stellar Magnetic Fields, Stellar Radiation, Stellar Spectra, Calcium, K Lines, Polarized Radiation, Stellar Temperature

Scientific paper

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.

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