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Measurements of the general magnetic fields of active late-type stars

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Abstract

Measurements of the general magnetic fields of active, late-type stars obtained with the 2.6-m Sha\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \)n telescope of the Crimean Astrophysical Observatory are reported. Statistically significant values of the magnetic fields of ∈ Eri and 61 Cyg A have been detected. The magnetic fields range from −10 to 21 G. The magnetic-field values for ∈ Eri and 61 Cyg A exceed the solar field by an order of magnitude; ∈ Eri is more active than the Sun, while 61 Cyg A has approximately the same activity level as the Sun. There is some evidence for variations in the general magnetic fields of these stars associated with their axial rotation.

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Authors and Affiliations

  1. Crimean Astrophysical Observatory, p/o Nauchnyi, Crimea, 98409, Ukraine

    T. N. Tarasova, S. I. Plachinda & V. V. Rumyantsev

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  1. T. N. Tarasova
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  2. S. I. Plachinda
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  3. V. V. Rumyantsev
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__________

Translated from Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 78, No. 6, 2001, pp. 550–557.

Original Russian Text Copyright © 2001 by Tarasova, Plachinda, Rumyantsev.

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Tarasova, T.N., Plachinda, S.I. & Rumyantsev, V.V. Measurements of the general magnetic fields of active late-type stars. Astron. Rep. 45, 475–481 (2001). https://doi.org/10.1134/1.1374644

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