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Populations of Hydrogen-like Atoms or Ions and Radio Recombination Lines (RRL's) Interpretation

Published online by Cambridge University Press:  26 May 2016

N.I. Rovenskaya
N.I. Rovenskaya*
Affiliation:
Institute of Radio Astronomy, Krasnoznamennaya 4,Kharkov, Ukraine

Abstract

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The problem of non-LTE populations has been considered in terms of the departure coefficients ∂bn/∂n as functions of the kinetic temperature Te, the electron density Ne, the continuum radiation flow Ic and the ratios of IHnα, IHnβ, IHnδ and IHnε (the line radiation flows). The ratio of IHnα/IHnβ are sensitive to the thermal radiation from HII regions. Characterized by the relation of ∂2bn/∂n2 > 0, the populations are shown to be inhabited radiatively.

Type
Part 6: Spectral Studies of our Galaxy
Information
Symposium - International Astronomical Union , Volume 199: The Universe at Low Radio Frequencies , 2002 , pp. 351 - 352
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Rovenskaya, N.I., 1999, Astrophys. Space Sci., 259, 1 CrossRefGoogle Scholar