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Discovery of a hot, interactive companion to the S star HD 35155

  • H. R. Johnson
  • T. B. Ake
6. Workshop on Alpha Orionis
Part of the Lecture Notes in Physics book series (LNP, volume 193)

Abstract

During an IUE investigation of the chromospheres of S stars, we detected strong emission lines of such ions as C IV and Si IV and excess continuous emission in an SWP exposure of HD 35155 (S3,2).7hese emission lines indicate a hot gas with a state of ionization exceeding that found in the recently studied Ba star systems of Zeta Cap and 56 Peg, both of which have white dwarf companions. IUE observations 7 months later showed the continuum had decreased by about 0.5 mag. and the emission lines by 15–50%, the high excitation lines decreasing most rapidly.

Keywords

White Dwarf Infrared Spectrophotometry Strong Emission Line NASA Ames Research Computer Science Corporation 
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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References

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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • H. R. Johnson
    • 1
    • 2
  • T. B. Ake
    • 3
  1. 1.Indiana UniversityBloomington
  2. 2.NAS-NRC Senior Fellow, NASA Ames Research Center, Moffett FieldCalifornia
  3. 3.Computer Sciences Corporation, NASA-Goddard Space Flight Center GreenbeltMaryland

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