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© 1985

X-Ray Astronomy in the Exosat Era

Proceedings of the XVIII ESLAB Sysmposium, held in The Hague, The Netherlands, 5–9 November 1984

  • A. Peacock
Conference proceedings

Table of contents

  1. Front Matter
    Pages i-xi
  2. Galactic X-Ray Astronomy

    1. Front Matter
      Pages 1-1
    2. Stellar Coronae and Isolated White Dwarfs

      1. C. J. Schrijver
        Pages 3-24
      2. N. E. White, J. L. Culhane, A. N. Parmar, B. Kellett, S. Kahn, G. H. J. van den Oord et al.
        Pages 25-33
      3. M. Landini, B. C. Monsignori-Fossi, R. Pallavicini
        Pages 43-49
      4. D. K. Bedford, K. H. Elliott, C. J. Eyles
        Pages 51-54
      5. Osmi Vilhu, John Heise
        Pages 55-62
      6. J. H. M. M. Schmitt, M. Sztajno
        Pages 69-72
      7. P. A. Charles, R. H. D. Corbet, K. Mukai, A. P. Smale, S. M. Kahn, L. V. Kuhi et al.
        Pages 73-78
      8. L. Vigroux, J. A. Paul, P. Delache, G. F. Bignami, P. A. Caraveo, L. Salotti
        Pages 91-97
    3. Cataclysmic Variables

      1. K. Beuermann, J. Osborne
        Pages 117-120
      2. J. Schrijver, A. C. Brinkman, H. van der Woerd, M. G. Watson, A. R. King, J. van Paradijs et al.
        Pages 121-126
      3. M. G. Watson, A. R. King, J. Heise
        Pages 127-133
      4. K. Beuermann, A. Schwope, H. Weissieker, C. Motch
        Pages 135-138
      5. K. Beuermann, L. Stella
        Pages 139-141
      6. J. P. Osborne, R. Rosen, K. O. Mason, K. Beuermann
        Pages 143-149

About these proceedings

Introduction

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.

Keywords

astronomy

Editors and affiliations

  • A. Peacock
    • 1
  1. 1.Space Science Department of the European Space Agency, ESTECThe Netherlands

Bibliographic information

  • Book Title X-Ray Astronomy in the Exosat Era
  • Book Subtitle Proceedings of the XVIII ESLAB Sysmposium, held in The Hague, The Netherlands, 5–9 November 1984
  • Editors A. Peacock
  • DOI https://doi.org/10.1007/978-94-009-5448-9
  • Copyright Information Springer Science+Business Media B.V. 1985
  • Publisher Name Springer, Dordrecht
  • eBook Packages Springer Book Archive
  • Hardcover ISBN 978-90-277-2099-3
  • Softcover ISBN 978-94-010-8906-7
  • eBook ISBN 978-94-009-5448-9
  • Edition Number 1
  • Number of Pages XII, 738
  • Number of Illustrations 0 b/w illustrations, 0 illustrations in colour
  • Topics Astronomy, Observations and Techniques
  • Buy this book on publisher's site
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