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The spectra and energies of classical double radio lobes

Abstract:

We compare two temporal properties of classical double radio sources: (1) radiative lifetimes of synchrotron-emitting particles and (2) dynamical source ages. We discuss how these can be quite discrepant from one another, rendering use of the traditional spectral aging method inappropriate: we contend that spectral ages give meaningful estimates of dynamical ages only when these ages are ≪107 yr. In juxtaposing the fleeting radiative lifetimes with source ages that are significantly longer, a...

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Publication status:
Published

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Publisher copy:
10.1086/301254

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Role:
Author
Journal:
ASTRONOMICAL JOURNAL
Volume:
119
Issue:
3
Pages:
1111-1122
Publication date:
2000-03-05
DOI:
ISSN:
0004-6256
URN:
uuid:93138875-cf72-4d35-b6a3-5b29517b6e21
Source identifiers:
12990
Local pid:
pubs:12990

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