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Doppler Images of ζ Andromedae |
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| Authors: | Zsolt K?vári Katalin Oláh János Bartus Klaus G Strassmeier Michael Weber Albert Washuettl John B Rice Szilárd Csizmadia |
| Institution: | (1) Konkoly Observatory, Budapest, Hungary;(2) Astrophysical Institute, Potsdam, Germany;(3) Brandon University, Brandon, Canada |
| Abstract: | Doppler images are presented for the RS CVn-type binary ζ And. Our upgraded Doppler imaging code TempMapε takes into account the distorted geometry of the primary giant component. On the maps several low latitude spots are restored with a temperature contrast of about 1000 K. Some weak polar features are also found. Cross-correlation of the consecutive Doppler-maps suggests solar-like differential surface rotation. |
| Keywords: | Stars: Activity of Stars: Imaging Stars: Individual: ζ Andromedae Stars: Late-type Starspots |
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