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Supernova observations at McDonald observatory

  • J. Craig Wheeler
2. Observations of Supernovae and Supernovae Remnants
Part of the Lecture Notes in Physics book series (LNP, volume 224)

Abstract

The programs to obtain high quality spectra and photometry of supernovae at McDonald Observatory are reviewed. Spectra of recent Type I supernovae in NGC 3227, NGC 3625, and NGC 4419 are compared with those of SN 1981b in NGC 4536 to quantitatively illustrate both the homogeneity of Type I spectra at similar epochs and the differences in detail which will serve as a probe of the physical processes in the explosions. Spectra of the recent supernova in NGC 0991 give for the first time quantitative confirmation of a spectrally homogeneous, but distinct subclass of Type I supernovae which appear to be less luminous and to have lower excitation at maximum light than classical Type I supernovae.

Keywords

Light Curf Classical Type Host Galaxy Maximum Light Peculiar Type 
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

© Springer-Verlag 1985

Authors and Affiliations

  • J. Craig Wheeler
    • 1
  1. 1.University of Texas at AustinUSA

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