Complications in the Balmer-Line Spectrum of TT Hydrae

  • Paul B. Etzel
Part of the NATO ASI Series book series (ASIC, volume 319)


The Balmer lines of interacting binaries cannot be interpreted in the usual sense as diagnostics of stellar photospheres. In an Algol-type binary, the presence of circumstellar material can lead to inconsistent interpretations about the nature of the hotter stellar component. The system TT Hydrae has fairly well established stellar properties. Its Balmer—line spectrum illustrates complications from circumstellar material. Complications at Hα because of the cooler secondary are also evident. Failure to recognize this complication could result in misinterpretations about the circumstellar material.


Accretion Disk Spectral Type Binary Star Secondary Component Balmer Line 
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

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • Paul B. Etzel
    • 1
  1. 1.Department of AstronomySan Diego State UniversitySan DiegoUSA

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