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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
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
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

References

Bildeman, W.P. 1954, ApJS, 1, 175 Google Scholar
Bopp, B.W. and Stencel, R.E. 1981, ApJ, 247, L131 CrossRefGoogle Scholar
Collier Cameron, A. and Robinson, R.D. 1989, MNRAS, 236, 57 CrossRefGoogle Scholar
Foing, B.H., Stempels, H.C. and Oliveira, J.M. 1998, A&A, in preparationGoogle Scholar
Foing, B.H. et al. 1994, A&A, 292, 543 Google Scholar
Holtzman, J.A. and Nations, H.L. 1984, AJ, 89, 391 CrossRefGoogle Scholar
Huenemoerder, D.P. et al 1993, ApJ, 404, 316 CrossRefGoogle Scholar
Oliveira, J.M. et al. 1997, A&A, submittedGoogle Scholar
Ramsey, L.W., Nations, H.L. and Barden, S.C. 1981, ApJ, 251, L101 CrossRefGoogle Scholar