Abstract Details
| Name: Atreyee Sinha Affiliation: TIFR, Mumbai Conference ID: ASI2015_422 Title : Blazar Monitoring from the HAGAR Cherenkov telescope Authors and Co-Authors : on behalf of the HAGAR collaboration. TIFR, Mumbai SINP, Kolkata IIA, Bangalore Abstract Type : Oral Abstract Category : Extragalactic astronomy Abstract : The HAGAR array, consisting of seven telescopes at a height of 4270m in the Ladakh region of the Himalayan mountains, detects gamma rays from celestial sources using the atmospheric Cherenkov technique by wavefront sampling method. Using the time difference between the relative arrival times at each telescope, we can get the initial shower direction by using a plane wavefront fitting. The difference between the reconstructed shower direction and the telescope pointing direction gives the space angle. This space angle distribution is used to reject the cosmic ray background and get the source counts. Regular blazar monitoring of selected VHE blazars have been carried out since October 2008. Here we present the results of long term monitoring of Mkn421, Mkr501, BL~Lac and 1ES2344+514, along with multiwavelength lightcurves and spectral energy distributions. |