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General Properties of Giant Radio Galaxies

Published online by Cambridge University Press:  25 May 2016

U. Klein ,
K.-H. Mack  and
L. Saripalli
U. Klein
Affiliation:
Radioastronomisches Institut der Universität Bonn - Auf dem Hügel 71, 53121 Bonn, Germany Indian Institute of Astrophysics - Koramangala, Bangalore - 560034, India
K.-H. Mack
Affiliation:
Radioastronomisches Institut der Universität Bonn - Auf dem Hügel 71, 53121 Bonn, Germany Indian Institute of Astrophysics - Koramangala, Bangalore - 560034, India
L. Saripalli
Affiliation:
Radioastronomisches Institut der Universität Bonn - Auf dem Hügel 71, 53121 Bonn, Germany Indian Institute of Astrophysics - Koramangala, Bangalore - 560034, India

Extract

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So far, the number of so-called giant radio galaxies (GRGs) is small. We define them as radio sources with linear sizes larger than 1 Mpc (H0 = 75 km s–1 Mpc–1). On-going low-frequency surveys may come up with many more candidates for this species. Their very existence may ultimately be connected with their environment. For instance, for a source like 3C236, which exhibits a linear and undisturbed structure over some 4 Mpc, the surrounding medium must have a low density. GRGs may thus serve to probe large volumes of the most tenuous intergalactic medium (IGM), e.g. via depolarization studies.

Type
Radio Sources and their Environment
Information
Symposium - International Astronomical Union , Volume 175: Extragalactic Radio Sources , 1996 , pp. 311 - 312
Copyright
Copyright © Kluwer 1996 

References

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Saripalli, L., Mack, K.-H., Klein, U., Strom, R. and Singal, A. K. (1995) A&A , in press Google Scholar
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