Abstract Details
| Name: Mamta Affiliation: CRAL-l Conference ID: ASI2015_441 Title : Non-thermal emission in Galaxy clusters at high redshift range (z>0.3) Authors and Co-Authors : F. Combes (LERMA, Observatoire de Paris, France) J. Bagchi (IUCAA, India) B. Guiderdoni(CRAL-l'Observatoire de Lyon, France) D. Narasimha(TIFR, India) J. Jacob (Newman College, Kerela, India) Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : Galaxy clusters are the densest part of the large-scale structures of the Universe that are gravitationally bounded. The Intra Cluster Medium (ICM) consists of a mixture of hot plasma, magnetic fields and relativistic particles. These relativistic particle in the presence of magnetic field gives rise to rare non-thermal intra cluster emission whose existence and extent is now well established, thanks to high sensitivity observations. Low frequency radio observations (mainly with the GMRT) of the sky have revealed the presence of such non-thermal intra cluster diffuse radio emission in about 98 galaxy clusters as of now. This non-thermal diffuse emission is classified as centrally placed Mpc-scale radio halos and peripheral radio relics. In this presentation we will discuss about the new results obtained by the GMRT on a sample of clusters located at high redshift range (z>0.3). |