Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-03-23
Astronomy and Astrophysics
Astrophysics
6 pages to appear in Particles and Fields in Radio Galaxies, eds R.A. Laing and K.M. Blundell, ASP Conf Ser
Scientific paper
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. 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 impact on prevailing opinion because the 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.
No associations
LandOfFree
AGN and Cooling Flows does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with AGN and Cooling Flows, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and AGN and Cooling Flows will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-193178