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Radio Emission from Compact Objects

Published online by Cambridge University Press:  14 August 2015

K. I. Kellermann
K. I. Kellermann*
Affiliation:
National Radio Astronomy Observatory, Green Bank, W. Va., U.S.A.∗

Abstract

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Compact radio stars are associated with both galaxies and quasi-stellar objects; and there appears to be no way to distinguish between the radio galaxies and the quasi-stellar radio sources from their radio properties alone.

The compact radio sources are opaque at the longer radio wavelengths and have spectra that are either peaked or complex. They have a complex brightness distribution and often contain components less than 0.001 arc sec in size.

Many of the compact sources show large intensity variations and in NGC 1275 there is evidence for a change in the angular size during one year.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 44: External Galaxies and Quasi-Stellar Objects , 1972 , pp. 190 - 213
Copyright
Copyright © Reidel 1972 

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