Journal of Astrophysics and Astronomy

, Volume 7, Issue 3, pp 131–139 | Cite as

On the origin of the galactic ridge recombination lines

  • K. R. Anantharamaiah


Radio recombination lines are known to be observable at positions along the galactic ridge which are free of discrete continuum sources. Based on the results of a recent survey of H272α lines it is shown that most of the observed galactic ridge recombination lines can be explained as emission from outer low-density envelopes of normal Hn regions. The distribution of low-density ionized gas and discrete HII regions as a function of the distance from the galactic centre is also derived.

Key words

Galaxy recombination lines galactic ridge HII regions low-density envelopes distribution 


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Copyright information

© Indian Academy of Sciences 1986

Authors and Affiliations

  • K. R. Anantharamaiah
    • 1
  1. 1.Raman Research InstituteBangalore

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