Magnetic Structures and Giant Flares in HR1099

  • B. H. Foing
  • S. Char
  • T. Ayres
  • C. Catala
  • D. S. Zhai
  • S. Jiang
  • L. Huang
  • J. X. Hao
  • E. Houdebine
  • S. Jankov
  • J. Baudrand
  • J. Czarny
  • J. F. Donati
  • P. Felenbok
  • S. Catalano
  • G. Cutispoto
  • A. Frasca
  • M. Rodono
  • J. E. Neff
  • T. Simon
  • A. Collier-Cameron
  • C. J. Butler
Chapter

Abstract

We describe results from the December 1989 multi-site continuous observing campaign (MUSICOS 89 with 17 telescopes around the globe) dedicated to the study of active structures and flares on the RS CVn system HR1099=V711 Tau. Two exceptional white-light flares were detected on 14 and 15 December with remarkable photometric and spectral signatures during rise and decay. Equivalent colours, temperature excesses, projected areas (0.55 and 0.89 solar disc areas), radiative and kinetic energy budgets were derived for the two white-light flares. At IAU Colloq. 153, we presented the relation between Doppler imaged spots, extended emission and these giant flares, and discussed them in the context of models of magnetic interconnection and filament energy storage between the stars.

Keywords

Coronal Mass Ejection Doppler Imaging Kinetic Energy Budget Extended Emission HR1099 Campaign 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Catala, C. and Foing, B.H. Eds., 1990, Proceedings 2nd MUSICOS Workshop on MUlti SIte COntinuous Spectroscopy, Paris-Meudon Obs. Publ.Google Scholar
  2. Catala, C., Foing, B.H., Baudrand, J. et al, 1993 A&A, 275, 245ADSGoogle Scholar
  3. Char, S., Foing, B.H, Lemaire, P. et al, 1990 in Proc.2nd MUSICOS Workshop, p.69Google Scholar
  4. Foing, B.H. et al, 1990 in Proceedings 2nd MUSICOS Workshop, p.117Google Scholar
  5. Foing, B.H., Char S., Ayres, T. et al, 1994 A&A, 292, 543ADSGoogle Scholar
  6. Huang, L., Zhai, D.S., Catala, C. and Foing, B.H. Eds., 1995, Proc. 4th MUSICOS Workshop on MUlti Site Continuous Spectroscopy, Beijing/Toulouse/EST EC Publ.Google Scholar
  7. Jankov, S., Donati, J.F. in Proceedings 4th MUSICOS Workshop, p.143Google Scholar
  8. van den Oord G.H., 1988 A&A, 205, 167ADSGoogle Scholar
  9. Zhai D.S., Foing, B.H., Cutispoto, G. et al, 1994 A&A, 282, 168ADSGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • B. H. Foing
    • 1
  • S. Char
    • 1
  • T. Ayres
    • 1
  • C. Catala
    • 1
  • D. S. Zhai
    • 1
  • S. Jiang
    • 1
  • L. Huang
    • 1
  • J. X. Hao
    • 1
  • E. Houdebine
    • 1
  • S. Jankov
    • 1
  • J. Baudrand
    • 1
  • J. Czarny
    • 1
  • J. F. Donati
    • 1
  • P. Felenbok
    • 1
  • S. Catalano
    • 1
  • G. Cutispoto
    • 1
  • A. Frasca
    • 1
  • M. Rodono
    • 1
  • J. E. Neff
    • 1
  • T. Simon
    • 1
  • A. Collier-Cameron
    • 1
  • C. J. Butler
    • 1
  1. 1.The Musicos 1989 Campaign Collaboration Estec/SoAG NoordwijkThe Netherlands

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