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Astrophysics and Space Science

, Volume 131, Issue 1–2, pp 697–700 | Cite as

X-Ray and optical observations of the X-ray source EX0020528+1454.8

  • R. Hudec
  • W. Wenzel
  • W. Goetz
  • B. Valníček
  • R. Peřestý
  • G. A. Richter
  • G. Hacke
  • H. Huth
  • A. Mrkos
  • J. Tremko
Related Objects

Abstract

We present preliminary results of the EXOSAT X-ray observations and quasisimultaneous and simultaneous optical photometry of the X-ray source EX0020528+1454.8=1E0205+149 found independently as an serendipitous source both with Einstein and EXOSAT satellites. The optical counterpart is a pair of dMe stars. Our results indicate that the object is variable both in X-rays and optical wavelenghts, and probably belongs to dMe flare stars.

Keywords

Flare Optical Observation Optical Counterpart Flare Star Optical Photometry 
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.

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Copyright information

© D. Reidel Publishing Company 1987

Authors and Affiliations

  • R. Hudec
    • 1
  • W. Wenzel
    • 2
  • W. Goetz
    • 2
  • B. Valníček
    • 1
  • R. Peřestý
    • 1
  • G. A. Richter
    • 2
  • G. Hacke
    • 2
  • H. Huth
    • 2
  • A. Mrkos
    • 3
  • J. Tremko
    • 4
  1. 1.Astronomical Institute of the Czechoslovak Academy of SciencesOndřejovCzechoslovakia
  2. 2.Observatory SonnebergCentral Astrophysical Institute of the Academy of Sciences of GDRGermany
  3. 3.Kleť ObservatoryČeské BudějoviceCzechoslovakia
  4. 4.Astronomical Institute of the Slovak Academy of SciencesTatranská LomnicaCzechoslovakia

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