Title: Multi-waveband study of the blazar BL Lacertae and EBL estimation from observed data

by Ms Atreyee Sinha ((DHEP, TIFR))

Monday 29 Apr 2013, 14:30 → 15:30 Asia/Kolkata

AG-66 (Colaba Campus)

I will talk about the Spectral Energy Distribution (SED) modeling of the blazar BL Lacertae for the period starting from 9th May to 8th July, 2011, when it was in a relatively high state in gamma rays. I will present the broadband energy spectrum using data from the Fermi-LAT, the RXTE-PCA, the Swift-XRT and the Swift- UVOT, with special emphasis on the LAT data. The broadband SED is then modeled using a one zone leptonic model considering synchrotron and synchrotron self Compton processes. Our present model fails to reproduce the observed spectrum. I will also speak a few words about the data analysis of the HAGAR telescope system at Hanle,Ladakh.