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A plasmon model for the knots of M 87

Authors
Journal
Chinese Astronomy and Astrophysics
0275-1062
Publisher
Elsevier
Publication Date
Volume
7
Issue
4
Identifiers
DOI: 10.1016/0275-1062(83)90002-4

Abstract

Abstract A plasmon model for the optical-radio knots of M87 is discussed with reference to their observed characteristics and physical conditions. The spectral evolution is investigated under the joint dissipation through expansion, Fermi acceleration and synchrotron radiation. A Fermi acceleration coefficient of ∼ 10 −9 s −1 was obtained, and it was also shown that a spectral break should occur at ∼ 5 × 10 14Hz and that this frequency should vary very slowly in time, in agreement with observations.

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