Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..312w&link_type=abstract
Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 July
Astronomy and Astrophysics
Astronomy
Scientific paper
Radio sources in galaxy clusters can be roughly classified into halo and relic sources. The emission from these sources are believed to be triggered by clusters-merging induced activities such as shocks and turbulences which accelerate electrons directly and/or re-accelerate fossil electrons in the intracluster media to relativistic speeds. We investigate the spectral and polarization properties of emission from cluster halo and relic radio sources via time-dependent polarized radiative transfer calculations which take account of propagation effects of inhomogeneities in the intracluster material and magnetic field and effects of source geometry and non-negligible light crossing time. The implication of the results on theoretical modeling and interpretation of the observations of cluster radio sources are discussed.
Hunstead Richard
Johnston-Hollitt Melanie
Wu Kinwah
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