Radio halos, cluster mergers, and cooling flows
Peter C. Tribble
Institute of Astronomy, Madingley Road, Cambridge CB3 0HA
Accepted 1992 December 23. Received 1992 December 2; in original form
1992 August 10.
Abstract
Radio halos are rarely found in galaxy clusters with cooling
flows, and those that are are rather different from the canonical halos
such as that in the Coma cluster. I propose that the big cluster radio
halos are transient, being formed in large cluster mergers and then
fading. The small halos in cooling flows are a result of magnetic field
compression and reacceleration of old relativistic electrons by the
cooling flow.
Key words: acceleration of particles - magnetic fields - cooling
flows - radio continuum: general
Contents:
- Introduction
- Cluster mergers and Radio haloes
- Fields and particles in cooling flows
- Simulated cooling flow models
- Conclusions
This article appeared in Monthly Notices of the Royal Astronomical
Society, vol 263, pp. 31-36 (1993). Copyright Royal Astronomical
Society.
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Peter Tribble, peter.tribble@gmail.com