Astroparticle Physics

Gamma Ray Astronomy with HImalayan Gamma Ray Observatory (HIGRO)

by Lab Saha (Saha Institute, Kolkata)

Europe/Berlin
Building 67, SemRm 10 (DESY Hamburg)

Building 67, SemRm 10

DESY Hamburg

Description
High Altitude GAmma Ray (HAGAR) telescope array installed at Ladakh in Himalayas has been operating since September, 2008. Since then several galactic objects like Crab nebula, Geminga pulsar and X-ray binaries have been observed. Also many extragalactic objects like active galactic nuclei (Mkn 421, Mkn 501) have been observed with HAGAR. In particular, flux from Mkn 421 observed in February, 2010 confirmed its flaring state and its multi-waveband spectral energy distribution (SED) suggested a possible reason for high state in flux activity was due to passing of shock in the jet. Estimates of performance parameters from simulations will also be presented. Finally, I'll discuss the present status of MACE (Major Atmospheric Cherenkov Experiment), the second phase of HIGRO installation which will have a 21m diameter imaging Cherenkov telescope.