Astrophysics and Space Science

, Volume 14, Issue 2, pp 286–300 | Cite as

Radio emission of galactic clusters at 1.4 GHz and 2.7 GHz

  • R. Schwartz


41 galactic clusters containing stars with spectral types from O5 to B9 have been observed at frequencies of 1.4 GHz and 2.7 GHz. Only clusters with spectral types earlier than B1 show thermal radio emission. Emission measure, mean electron density, and mass ofHii gas have been computed from the observed data, and a comparison between the radio flux and Hα- and Hβ-flux densities has been made. The ratio of hydrogen mass and total stellar mass of the clusters and the gas to dust ratio are given.


Hydrogen Dust Radio Emission Emission Measure Spectral 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

© D. Reidel Publishing Company 1971

Authors and Affiliations

  • R. Schwartz
    • 1
  1. 1.Max-Planck-Institut für RadioastronomieBonnGFR

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