Conference item
AGN and cooling flows
- Abstract:
- For two decades the steady-state cooling-flow model has dominated-the literature of cluster and elliptical-galaxy X-ray sources. For ten years this model has been in severe difficulty from a theoretical point of view, and it is now coming under increasing pressure observationally A small number of enthusiasts have argued for a radically different interpretation of the data, but had little impacton prevailing opinion be-causeAhe unsteady heating picture that they-advocate is extremely hard to work out in detail. Here I explain why it is difficult to extract robust observational predictions from the heating picture. Major problems include the variability of the sources, the different ways in which a bi-polar flow can impact on X-ray emission, the weakness of synchrotron emission from sub-relativistic flows, and the sensitivity of synchrotron emission to a magnetic field that is probably highly localized.
- Publication status:
- Published
Actions
Authors
- Journal:
- PARTICLES AND FIELDS IN RADIO GALAXIES More from this journal
- Volume:
- 250
- Pages:
- 481-486
- Publication date:
- 2002-01-01
- Event title:
- Oxford Radio Galaxy Workshop
- ISBN:
- 1583810900
- Keywords:
- Pubs id:
-
pubs:23346
- UUID:
-
uuid:75d73a66-2e2a-4d28-8b5e-8287f3ca8c5f
- Local pid:
-
pubs:23346
- Source identifiers:
-
23346
- Deposit date:
-
2012-12-19
- ARK identifier:
Terms of use
- Copyright date:
- 2002
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