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Prominence Mapping of the RS CVn system HR 1099

Published online by Cambridge University Press:  03 June 2005

P. Petit ,
J.-F Donati ,
M. Jardine  and
A. Collier Cameron
P. Petit
Affiliation:
Max-Planck-Institut für Sonnensystemforschung, Max-Planck-Str. 2, 37191 Katlenburg-Lindau, Germany, email: [email protected]
J.-F Donati
Affiliation:
Observatoire Midi-Pyrénées, 14 avenue Edouard Belin, 31400 Toulouse, France, email: [email protected]
M. Jardine
Affiliation:
School of Physics and Astronomy, University of Saint Andrews, Saint Andrews KY16 9SS, UK, email: [email protected], [email protected]
A. Collier Cameron
Affiliation:
School of Physics and Astronomy, University of Saint Andrews, Saint Andrews KY16 9SS, UK, email: [email protected], [email protected]
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Abstract

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We investigate temporal fluctuations in the H$\alpha$ emission profiles of the RS CVn system HR 1099 from a monitoring using the MuSiCoS spectropolarimeter (Observatoire du Pic du Midi, France) in 2001, between December 01 and December 18. Part of the observed emission fluctuations is consistent with rotational modulation, which we interpret as the spectral signature of a dense and complex prominence system trapped in the magnetosphere of HR 1099 and forced to co-rotate with the binary system. The distribution of emitting material is mapped by means of Doppler tomography. We discuss the evolution of prominences over the observing window.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Keywords

stars: flarestars: activity
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS226 , September 2004 , pp. 511 - 512
Copyright
© 2005 International Astronomical Union