Diffuse Radio Sources in Clusters of Galaxies: Models and Long Wavelength Radio Observations

Details Diffuse Radio Sources in Clusters of Galaxies: Models and Long Wavelength Radio Observations Diffuse Radio Sources in Clusters of Galaxies: Models and Long Wavelength Radio Observations

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd..12e...6s&link_type=abstract

Long Wavelength Astrophysics, 26th meeting of the IAU, Joint Discussion 12, 21 August 2006, Prague, Czech Republic, JD12, #6

Astronomy and Astrophysics

Astrophysics

Scientific paper

Clusters of galaxies are the largest relaxed structures in the Universe. The dominant observed form of matter in clusters is hot (10^8 K) intracluster gas. Clusters generally form by the gravitational merger of smaller clusters and groups. Major cluster mergers are the most energetic events in the Universe since the Big Bang. These mergers drive shocks in the intracluster gas, and these shocks heat the intracluster gas, and also accelerate nonthermal relativistic particles. Clusters host radio halo and radio relic sources, which may be the results of particle acceleration in mergers. The potential of long wavelength radio observations to help us understand clusters and large scale structure will be discussed, as well as their value as a diagnostic of cluster mergers, which affect the use of clusters in cosmological studies. This work was supported by the National Aeronautics and Space Administration through Chandra awards GO4-5133X, GO4-5137X, and GO5-6126X, and through XMM-Newton awards NNG04GO80G, NNG04GO34G, NNG04GP46G, NNG05GA34G, NNG05GO50G, and NNG06GD54G.

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