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Absorbtion of Radio Waves in the Gum Nebula

Published online by Cambridge University Press:  25 April 2016

H. V. Cane
H. V. Cane*
Affiliation:
Department of Physics, University of Tasmania
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Extract

Free-free absorption by thermal electrons attenuates low frequency radio waves and such absorption will indicate the presence of ionized hydrogen. The Gum Nebula contains bright H-alpha emission regions and therefore it is not surprising that the region appears as an area of low brightness on low frequency continuum maps.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 2 , Issue 4 , October 1973 , pp. 197 - 198
Copyright
Copyright © Astronomical Society of Australia 1973

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References

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