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      Permanent link:
      http://www.ias.ac.in/article/fulltext/joaa/032/04/0537-0538

    • Keywords

       

      Galaxy clusters – relics.

    • Abstract

       

      Radio relics in galaxy clusters can be electrons accelerated at cluster merger shocks or adiabatically compressed fossil radio cocoons or dying radio galaxies. The spectral evolution of radio relics is affected by the surrounding thermal plasma. We present a low frequency study of three radio relics representing environments of dense cluster core (A4038), cluster outskirts (A1664) and filaments (A786). The properties of the relics are found to be consistent with the effect of confinement by external medium if the effects of projection are ignored.

    • Author Affiliations

       

      Ruta Kale1 2 K. S. Dwarakanath1

      1. Raman Research Institute, Bangalore 560 080, India.
      2. Current address: Inter-University Centre for Astronomy and Astrophysics,
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