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Radio Spectra and Particle Ages of the Head-Tail Radio Galaxy NGC1265

Published online by Cambridge University Press:  25 May 2016

L. Feretti ,
G. Giovannini ,
U. Klein ,
K.-H. Mack  and
L.G. Sijbring
L. Feretti
Affiliation:
Istituto di Radioastronomia del C.N.R. - Via P. Gobetti, 41029 Bologna, Italy Radioastronomisches Institut der Universität Bonn - Auf dem Hügel 71, 53121 Bonn, Germany Kapteyn Astronomical Institute - Postbus 800, 9700 AV Groningen, The Netherlands
G. Giovannini
Affiliation:
Istituto di Radioastronomia del C.N.R. - Via P. Gobetti, 41029 Bologna, Italy Radioastronomisches Institut der Universität Bonn - Auf dem Hügel 71, 53121 Bonn, Germany Kapteyn Astronomical Institute - Postbus 800, 9700 AV Groningen, The Netherlands
U. Klein
Affiliation:
Istituto di Radioastronomia del C.N.R. - Via P. Gobetti, 41029 Bologna, Italy Radioastronomisches Institut der Universität Bonn - Auf dem Hügel 71, 53121 Bonn, Germany Kapteyn Astronomical Institute - Postbus 800, 9700 AV Groningen, The Netherlands
K.-H. Mack
Affiliation:
Istituto di Radioastronomia del C.N.R. - Via P. Gobetti, 41029 Bologna, Italy Radioastronomisches Institut der Universität Bonn - Auf dem Hügel 71, 53121 Bonn, Germany Kapteyn Astronomical Institute - Postbus 800, 9700 AV Groningen, The Netherlands
L.G. Sijbring
Affiliation:
Istituto di Radioastronomia del C.N.R. - Via P. Gobetti, 41029 Bologna, Italy Radioastronomisches Institut der Universität Bonn - Auf dem Hügel 71, 53121 Bonn, Germany Kapteyn Astronomical Institute - Postbus 800, 9700 AV Groningen, The Netherlands

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We have performed sensitive observations of three classical head-tail radio galaxies at λ11.1, 6.3, and 2.8 cm using the Effelsberg 100-m telescope (Zech, 1994). Complete maps of the sources 3C129, NGC1265, and 3C465 were obtained, including the distributions of the linearly polarized intensity. Together with the low-frequency interferometric maps these allow a comprehensive study of their radio spectra and, based on models of particle losses, the derivations of particle ages across these sources. The highest frequency involved allows an unambiguous derivation of the projected magnetic field structure, unimpeded by Faraday effects. Here we focus on NGC1265, which is located in the Perseus Cluster.

Type
Radio Sources and their Environment
Information
Symposium - International Astronomical Union , Volume 175: Extragalactic Radio Sources , 1996 , pp. 347 - 348
Copyright
Copyright © Kluwer 1996 

References

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