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Prominences and Circumstellar Emission Around FK Comae Berenices: Balmer Lines Diagnostics from MUSICOS Spectra1

Published online by Cambridge University Press:  12 April 2016

J.M. Oliveira ,
B.H. Foing ,
Ph. Gondoin ,
H.C. Stempels ,
T. Beaufort ,
R.S. Le Poole  and
J.A. de Jong
J.M. Oliveira
Affiliation:
ESA Space Science Department, SO/ESTEC, PB299, 2200 AG Noordwijk, The Netherlands
B.H. Foing
Affiliation:
ESA Space Science Department, SO/ESTEC, PB299, 2200 AG Noordwijk, The Netherlands
Ph. Gondoin
Affiliation:
ESA Space Science Department, SO/ESTEC, PB299, 2200 AG Noordwijk, The Netherlands
H.C. Stempels
Affiliation:
ESA Space Science Department, SO/ESTEC, PB299, 2200 AG Noordwijk, The Netherlands
T. Beaufort
Affiliation:
ESA Space Science Department, SO/ESTEC, PB299, 2200 AG Noordwijk, The Netherlands
R.S. Le Poole
Affiliation:
Leiden Observatory, The Netherlands
J.A. de Jong
Affiliation:
Astronomical Institute “Anton Pannekoek”, The Netherlands

Abstract

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We present results from the analysis of spectra of the fast rotating active giant star FK Comae Berenices. The extended emission is interpreted as arising in giant active loops and prominences. The absorption is due to a shell of cold and dense gas (like solar filaments).

Type
Stellar Filaments
Information
International Astronomical Union Colloquium , Volume 167: New Perspectives on Solar Prominences , 1998 , pp. 243 - 246
Copyright
Copyright © Astronomical Society of the Pacific 1998

Footnotes

2

Centro de Astrofísica da Universidade do Porto, Portugal

3

Institut d’Astrophysique Spatial, CNRS, France

1

Based on Observations with the ESA-MUSICOS spectrograph at the Isaac Newton Telescope, ING Observatory, La Palma, Spain

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