Abstract Details

Name: Sushmita Agarwal
Affiliation: Indian Institute of technology, Indore
Conference ID: ASI2021_111
Title : Study of gravitationally lensed Gamma-ray emitting Quasar PKS 1830-211
Authors and Co-Authors : Sushmita Agarwal (PhD student IIT Indore) , Dr. Amit Shukla (Assistant Professor IIT Indore)
Abstract Type : Poster
Abstract Category : Extragalactic Astronomy
Abstract : PKS 1830-211 is a known gamma ray emitting quasar at redshift z=2.507. The source is gravitationally lensed by a lensing galaxy at z= 0.89 and has been detected at High energy and Very High energy by FERMI-LAT and H.E.S.S.. Observations in Optical and radio passband shows two compact images on a diffuse Einstein Ring. The two images are expected to have a lag of 20-27 days and a magnification ration of 1.5. Data from FERMI-LAT is analyzed to better understand the High energy emission from such gravitationally lensed extragalactic objects.