Abstract Details
| Name: Sumana Nandi Affiliation: IIA, Bangalore Conference ID: ASI2018_867 Title : ULIRGs: the progenitors of the powerful FRII radio galaxies Authors and Co-Authors : Mousumi Das, IIA; Dwarakanath K.S., RRI; Shweta Srivastava, PRL Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : Ultraluminous infrared galaxies (ULIRGs) have enormous bolometric luminosities and are formed through the merging of gas-rich spirals. Multiwavelength observations suggest that the power of ULIRGs is associated with starburst and AGN activity. Therefore ULIRGs provide an excellent opportunity to study the different phases of galaxy evolution as well as the connection between AGN and starburst phenomena. Radio studies of ULIRGs have the potential to provide information on the transitional stage of gas-rich spirals into a dusty quasars. High-resolution radio observations can efficiently detect the highly obscured AGN related emission from ULRGs. Such studies indicate that their radio properties are similar to that of compact steep spectrum (CSS) or Gigahertz peaked spectrum (GPS) radio sources which represent an early stage of FRII radio galaxies. To probe their core jet structures we have started GMRT 1280 MHz radio continuum observations of three ULIRGs. Here we present preliminary results of our observations of these ULIRGs, which are merger remnants and possible progenitors of the powerful FRII radio galaxies. |