Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-07-14
Astronomy and Astrophysics
Astrophysics
8 pages, 4 figures. Contributed Talk at the Vulcano Workshop `Frontier Objects in Astrophysics and Particle Physics', May 22-2
Scientific paper
Some clusters of galaxies have been identified as powerful sources of non-thermal radiation, from the radio to X-ray wavelengths. The classical models proposed for the explanation of this radiation usually require large energy densities in cosmic rays in the intracluster medium and magnetic fields much lower that those measured using the Faraday rotation. We study here the role that mergers of clusters of galaxies may play in the generation of the non-thermal radiation, and we seek for additional observable consequences of the model. We find that if hard X-rays and radio radiation are respectively interpreted as inverse Compton scattering (ICS) and synchrotron emission of relativistic electrons, large gamma ray fluxes are produced, and for the Coma cluster, where upper limits are available, these limits are exceeded. We also discuss an alternative and testable model that naturally solves the problems mentioned above.
No associations
LandOfFree
Multiwavelength observations of clusters of galaxies and the role of cluster mergers 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 Multiwavelength observations of clusters of galaxies and the role of cluster mergers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiwavelength observations of clusters of galaxies and the role of cluster mergers will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-552182