A Zoo of Radio Relics: Cluster Cores to Filaments

Journal of astrophysics and astronomy

Ruta Kale1 2¹  K. S. Dwarakanath1¹ 

[1] Raman Research Institute, Bangalore 560 080, India.$$

关键词: Galaxy clusters – relics.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

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.

【 授权许可】

Unknown