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Parametric Relations of H II Galaxies

  • E. Telles
  • R. Terlevich

Abstract

The integrated Hβ luminosities of giant H II regions and of H II galaxies can be predicted with accuracy comparable to the observational errors from the velocity widths of their emission-line profiles. In addition, giant H II regions also present a relation between linear size and their emission-line width. Based on the similarity of these relations with those expected for virialized systems, Terlevich and Melnick interpreted the observed supersonic motions as due to the gravitational potential of a complex of gas and stars.

Keywords

Star Formation Velocity Dispersion Linear Size Surface Brightness Elliptical Galaxy 
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 Science+Business Media Dordrecht 1993

Authors and Affiliations

  • E. Telles
    • 1
    • 2
  • R. Terlevich
    • 2
  1. 1.Institute of AstronomyCambridgeUK
  2. 2.Royal Greenwich ObservatoryCambridgeUK

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