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Lyman-α radiation from nebular objects

Published online by Cambridge University Press:  14 August 2015

N. Panagia  and
M. Fulchignoni
N. Panagia
Affiliation:
Laboratorio di Astrofisica, Frascati, Italy
M. Fulchignoni
Affiliation:
Laboratorio di Astrofisica, Frascati, Italy

Abstract

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For a simplified model of a gaseous nebula, that is spherical, isothermal, homogeneous and composed of pure hydrogen, the amount of Lyman-α radiation emitted from the surface of the nebula is evaluated for various physical conditions. The problem of observability of the Lyman-α emission line is examined, taking into account absorption by dust and by interstellar neutral hydrogen.

Type
Part III: Interstellar Absorption and Emission
Information
Symposium - International Astronomical Union , Volume 36: Ultraviolet Stellar Spectra and Related Ground-Based Observations , 1970 , pp. 349 - 354
Copyright
Copyright © Reidel 1970 

References

Gerola, H. and Panagia, N.: 1969, Rapp. Int. 69/17, Laboratorio di Astrofisica, Frascati.Google Scholar
Hummer, D. G.: 1965, Mem. Roy. Astron. Soc. 70, 1.Google Scholar
Stecher, T. P.: 1965, Astrophys. J. 142, 1683.Google Scholar