Abstract Details

Name: Sravani Vaddi
Affiliation: NCRA-TIFR
Conference ID: ASI2017_1211
Title : Black hole spins of radio loud quasars
Authors and Co-Authors : Preeti. Kharb (NCRA-TIFR), Ruth. Daly (Penn State University), C. P. O'Dea (University of Manitoba), S. A. Baum (University of Manitoba)
Abstract Type : Oral
Abstract Category : Extragalactic astronomy
Abstract : Black holes are defined by two simple yet important parameters - mass and spin. While BH mass has been determined effectively, determining the black hole spin has been much more difficult. Black hole spins leave important clues about the growth of black hole over time and give implications on the merger and accretion history of a galaxy. We focus on measuring the spins of black holes in 11 quasars that have classical double lobe morphology. The radio properties can be used to estimate the beam power channelled through a large scale outflow. Together with the BH mass, the beam power can be used to estimate the black hole spin. We studied 11 FRII radio loud quasars using EVLA at 1.4GHz and 5 GHz in matched array configuration. We present preliminary results from EVLA observations of this quasar sample.