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Low Frequency Recombination Lines

  • A. Pedlar
  • R. D. Davies
Part of the Astrophysics and Space Science Library book series (ASSL, volume 80)

Abstract

Low frequency recombination lines will be defined for the purpose of this paper, to be those transitions with frequencies significantly less than 1 GHz. Most radio recombination line observations have been carried out at high frequencies, as not only can higher angular resolution be obtained, but also the signal-to-noise ratio is higher for small diameter, high emission measure objects and there are less problems with the optical depth of the free-free emission.

Keywords

Electron Temperature Optical Depth Galactic Centre Recombination Line Hydrogen 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

© D. Reidel Publishing Company 1980

Authors and Affiliations

  • A. Pedlar
    • 1
  • R. D. Davies
    • 1
  1. 1.Nuffield Radio Astronomy Laboratories Jodrell BankMacclesfield, CheshireEngland

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