Search for magnetic fields in late-type giants

Details Search for magnetic fields in late-type giants Search for magnetic fields in late-type giants

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...291..890h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 291, no. 3, p. 890-894

Astronomy and Astrophysics

Astrophysics

18

Giant Stars, Late Stars, Stellar Luminosity, Stellar Magnetic Fields, X Ray Stars, Charge Coupled Devices, Line Spectra, Magnetic Effects, Spectrographs, Zeeman Effect

Scientific paper

We present the results of magnetic field measurements for 13 bright giants of different X-ray luminosity, obtained by means of the Babcock-technique. For the giants gamma Tau, epsilon Tau, epsilon Leo and xi Her the measured mean longitudinal magnetic field exceeds the corresponding mean error by at least a factor of 3 on one occasion, each. Possible correlations between the detectability of a magnetic field and the X-ray luminosity as well as a general understanding of our results within the physics of stellar activity are discussed.

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