White Dwarfs pp 201-202 | Cite as

WD1953-011 — A White Dwarf With a Star Spot?

  • C. S. Brinkworth
  • T. R. Marsh
  • P. F. L. Maxted
  • L. Ferrario
  • L. Morales-Rueda
  • D. T. Wickramasinghe
Chapter
Part of the NATO Science Series book series (NAII, volume 105)

Abstract

WD1953-011 is an isolated, cool (∼ 7900K, [1]) magnetic white dwarf with an unusually low field strength (∼ 70kG, [2]) and a higher than average mass (∼ 0.84M). Spectroscopic observations taken by Maxted et al.[2], showed variations of equivalent width in the Balmer lines, unusual in a low field white dwarf. This result led to an application for photometric time to try and detect these variations in the narrow Hβ and broad bands.

Keywords

Convection 

References

  1. 1.
    Bragaglia A., Rezini A., Bergeron P., 1995, ApJ, 443, 735ADSCrossRefGoogle Scholar
  2. 2.
    Maxted P.F.L., Ferrario L., Marsh T. R., Wickramasinghe D.T., 1995, MNRAS, 315, L41ADSCrossRefGoogle Scholar
  3. 3.
    Barstow M. A., Jordan S., O’Donoghue D., Burleigh M. R., Napiwotzki R., Harrop-Allin M.K., 1995, MNRAS, 277, 971ADSGoogle Scholar
  4. 4.
    Ferrario L., Vennes S., Wickramasinghe D.T., Bailey J., Christian D. J., 1997, MNRAS, 292, 205ADSGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • C. S. Brinkworth
    • 1
  • T. R. Marsh
    • 1
  • P. F. L. Maxted
    • 2
  • L. Ferrario
    • 3
  • L. Morales-Rueda
    • 1
  • D. T. Wickramasinghe
    • 3
  1. 1.Department of Physics and AstronomyUniversity of SouthamptonSouthamptonUK
  2. 2.School of Chemistry and PhysicsKeele UniversityStaffordshireUK
  3. 3.Department of MathematicsThe Australian National UniversityCanberraAustralia

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