Abstract Details
| Name: Veeresh Singh Affiliation: Physical Research Laboratory, Ahmedabad Conference ID: ASI2016_519 Title : Unveiling Active Galactic Nuclei (AGN) population in distant dusty galaxies Authors and Co-Authors : Alexandre Beelen (IAS, Orsay, France), Yogesh Wadadekar (NCRA-TIFR, Pune), C.H. Ishwara-Chandra (NCRA-TIFR, Pune), Sandeep Sirothia (NCRA-TIFR, Pune; SKA CapeTown) Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : Ultra Steep Spectrum (USS) radio sources are one of the efficient tracers of high-redshift Active Galactic Nuclei (AGN). We unveil the population of radio-loud AGN at higher redshifts using one of the deepest existing radio continuum surveys (GMRT, VLA) combined with deep optical (Subaru, VLT-VIMOS), IR (Spitzer) and Far-IR (Herschel) observations in the XMM-LSS extragalactic field. We find that the majority of these radio-loud AGN distributed over redshifts ~ 1 to 4, are only moderately powerful, compact and hosted in star-forming dusty galaxies. It is believed that these sources represent initial stage of the evolutionary sequence of radio galaxies, at which radio jets are still confined by the dense cool gas. These radio AGN are likely to be the progenitors of powerful radio galaxies in the local Universe. |