14-11-2014 13:30 hs.
Extragalactic Deep Fields: Multi-band studies and some key results
Dr. Ishwara Chandra C.H. – National Centre for Radio Astrophysics, TIFR, Pune, India
Deep radio surveys, particularly at low radio frequencies are extremely important to study the formation and evolution of active galaxies at all redshifts. Radio observations are also useful to discover active galaxies at highest redshifts. We have been carrying out deep radio survey of well known deep fields at 325 MHz with GMRT. The primary aim of these observations are to search for steep spectrum radio sources, which are strong candidates for high-redshift radio galaxies. Matching available deep optical and IR observations for these fields make them the most valuable data set for studying the evolution of radio galaxies. In this talk, we describe goals of our programme and focus on a few issues, like formation and evolution of AGN at high redshifts.