Publication Date:
2011-08-19
Description:
The paper reports results of a magnetic field measuring campaign on the active K component of the RS CVn system HR 1099, using Zeeman-Doppler imaging. A localized magnetic field is detected near quadrature (phase 0.85). Assuming this magnetic region has a circular shape, its longitude and latitude are, respectively, estimated to be 86 + or - 4 deg and 5 + or - 5 deg. This equatorial region is largely monopolar, has a mean field strength of 985 + or - 270 G, covers 18 + or - 3 percent of the total stellar surface and may be colocalized with a bright photospheric spot.
Keywords:
ASTROPHYSICS
Type:
Astronomy and Astrophysics (ISSN 0004-6361); 232; 1, Ju
Format:
text
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