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Absorbtion of Radio Waves in the Gum Nebula
Published online by Cambridge University Press: 25 April 2016
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.
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- 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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