Mathematics – Logic
Scientific paper
Feb 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.3103b&link_type=abstract
American Astronomical Society, HEAD meeting #11, #31.03; Bulletin of the American Astronomical Society, Vol. 41, p.702
Mathematics
Logic
Scientific paper
Cosmological shock waves arising from large-scale structure formation are responsible for thermalization of the intracluster medium in galaxy clusters. However, they are also capable of accelerating nonthermal electrons and protons. Here we focus on the acceleration of electrons at shock fronts. This process is thought to be responsible for radio relics, extended radio features in the vicinity of merging galaxy clusters. By combining high resolution AMR/N-body cosmological simulations with an accurate shock finding algorithm and a model for electron acceleration, we calculate the expected synchrotron emission resulting from cosmological structure formation. We will show synthetic radio maps and X-ray images of a large sample of galaxy clusters and present luminosity functions and scaling relationships. We find that with upcoming radio telescopes, we expect to see an abundance of radio emission associated with merger shocks in the intracluster medium. By producing observationally motivated statistics, we provide predictions that can be compared with observations to further our understanding of electron shock acceleration and kinematic structure of galaxy clusters.
Burns O. Jr. J.
Hallman Eric
O'Shea Brian
Skillman S.
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