X-Ray Astronomy in the Exosat Era: Proceedings of the XVIII Eslab Sysmposium, Held in the Hague, the Netherlands, 5-9 November 1984 (Softcover ReprintPaperback - Softcover Reprint of the Original 1st 1985, 2 October 2011

X-Ray Astronomy in the Exosat Era: Proceedings of the XVIII Eslab Sysmposium, Held in the Hague, the Netherlands, 5-9 November 1984 (Softcover Reprint
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Print Length
738 pages
Language
English
Publisher
Springer
Date Published
2 Oct 2011
ISBN-10
940108906X
ISBN-13
9789401089067

Description

Algol is a triple system containing a 70 hr eclipsing binary (K IV and B8 V) in a 694 day orbit with an A V star. The X-ray emission from this system (Schnopper et al 1976) is thought to be associated with a corona surrounding the lobe filling and synchron- ously rotating K IV star. This is based on the similarity of the X-ray spectrum and luminosity of this system to that of the RS CVn binaries which also contain K sub-giants with similar rotation periods and the fact that the luminosity of any coronae surrounding the B8 V and AV companion stars should not be enhanced by rapid rotation (Pallavicini et al 1980, White et al 1980). The Einstein SSS measurement showed the X-ray spectrum to be two component with 6 7 temperatures of 7. 10 K and 3. 10 K (White et al. 1980). As dis- cussed by Swank et al. (1981), the problem in understanding stellar coronae in general is how to scale up the solar model to account for the enhanced luminosities. The close to 900 inclination and similar sizes for the Band K stars of 3. 6 and 3. 8 R0 respectively make Algol an ideal candidate for an X-ray eclipse measurement wherein the size of the X-ray emitting coronal structures can be directly measured. In this paper we report a continuous observation through the secondary eclipse of Algol using the EXOSAT Observatory. 2.

Product Details

Book Edition:
Softcover Reprint of the Original 1st 1985
Book Format:
Paperback
Country of Origin:
NL
Date Published:
2 October 2011
Dimensions:
23.39 x 15.6 x 3.84 cm
ISBN-10:
940108906X
ISBN-13:
9789401089067
Language:
English
Location:
Dordrecht
Pages:
738
Publisher:
Springer
Weight:
1038.73 gm

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