Abstract Details
| Name: Yogesh Wadadekar Affiliation: NCRA-TIFR Conference ID: ASI2016_861 Title : A GMRT survey of some Herschel/HerMES deep fields at 325 MHz Authors and Co-Authors : Sandeep Sirothia (SKA-SA, NCRA-TIFR), Aritra Basu (MPIfR, Germany), Veeresh Singh (PRL), C. H. Ishwara-Chandra (NCRA-TIFR), Alexandre Beelen (IAS, France) and Alain Omont (IAP, France) Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : Deep radio observations of well studied fields at far infrared and other wavelengths are effective tracers of obscured star formation and active galactic nuclei over a wide range of redshift and luminosity. FIR observations suffer from large positional uncertainty, while radio observations yield accurate positions, and therefore, enable unambiguous identification of optical counterparts, particularly for dusty high-z galaxies, and thus eventually leading to measurement of redshifts. The abundance of multiwavelength imaging and spectroscopy in these deep fields enables detailed studies of the physical phenomena underlying the radio sources. We have carried out a systematic program to observe 3 fields viz. the XMMLSS field, the Lockman hole field and the ELAIS-N1 field to depths of upto 100 micro-Jy rms over about 40 deg^2 with the GMRT at 325 MHz. I will discuss the comprehensive scientific exploitation of the data in the XMMLSS field that has led to advances in the study of distant radio AGN, of the radio-FIR correlation in normal star-forming galaxies up z ~ 1 and to the discovery of a dying, giant radio galaxy at z ~ 1.3. |