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The Relic Radio Source B2 0924+30

Published online by Cambridge University Press:  25 May 2016

U. Klein ,
K.-H. Mack ,
L. Gregorini  and
P. Parma
U. Klein
Affiliation:
Radioastronomisches Institut der Universität Bonn Auf dem Hügel 71, 53121 Bonn, Germany Istituto di Radioastronomia del C.N.R. Via P. Gobetti, 40129 Bologna, Italy
K.-H. Mack
Affiliation:
Radioastronomisches Institut der Universität Bonn Auf dem Hügel 71, 53121 Bonn, Germany Istituto di Radioastronomia del C.N.R. Via P. Gobetti, 40129 Bologna, Italy
L. Gregorini
Affiliation:
Radioastronomisches Institut der Universität Bonn Auf dem Hügel 71, 53121 Bonn, Germany Istituto di Radioastronomia del C.N.R. Via P. Gobetti, 40129 Bologna, Italy
P. Parma
Affiliation:
Radioastronomisches Institut der Universität Bonn Auf dem Hügel 71, 53121 Bonn, Germany Istituto di Radioastronomia del C.N.R. Via P. Gobetti, 40129 Bologna, Italy

Extract

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The double radio source B2 0924+30, associated with the luminous E/S0 galaxy IC2476, may be considered a prototypical genuine relic of a ‘dead’ radio galaxy as it seems to perfectly fulfill the following criteria: It has a rather steep overall radio spectrum (Ekers et al., 1981; Cordey, 1987). Its core luminosity is by far the lowest known so far (Giovannini et al., 1988). No coherent jet structure or other signs of activity are visible. Since only four possibly genuine relics of radio galaxies are known so far (Harris et al., 1993), a study of the archetypical source B2 0924+30 is of eminent importance for the understanding of this rare species of radio galaxies.

Type
Radio Sources and their Environment
Information
Symposium - International Astronomical Union , Volume 175: Extragalactic Radio Sources , 1996 , pp. 345 - 346
Copyright
Copyright © Kluwer 1996 

References

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