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Structures of Binary Star Coronae

Published online by Cambridge University Press:  26 May 2016

Nancy S. Brickhouse
Nancy S. Brickhouse*
Affiliation:
Harvard-Smithsonian CfA, 60 Garden St., Cambridge, MA 02138 USA

Abstract

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Stellar coronae in binary star systems offer both a puzzle and an opportunity. We might expect that large magnetic loop structures on close binaries, such as RS CVn systems and contact binaries, would show evidence for interactions between the stars. While some radio studies support this scenario, there is surprisingly little evidence from EUV and X-ray observations for differences between binary and single star systems. Meanwhile, the binary systems offer observational opportunities through rotational modulation and eclipses of flaring and non-flaring regions. Localizing the sources of coronal emission is key to making the magnetic connection to the underlying photosphere. We discuss the structure of stellar coronae from the perspective of studies of binary systems.

Type
Part 5: Stellar Magnetic Activity and Evolution
Information
Symposium - International Astronomical Union , Volume 219: Stars as Suns : Activity, Evolution and Planets , 2004 , pp. 199 - 210
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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