15–17 Feb 2017
Bose Institute, Kolkata, India
Asia/Kolkata timezone

Sensitivity of ICAL to TeV-PeV Gamma rays at INO

16 Feb 2017, 16:50
20m
Oral

Speaker

Dr Nitali Dash (Post Doctoral Fellow)

Description

We report the sensitivity of Iron Calorimeter (ICAL) detector to the detection of TeV-PeV Gamma rays from various astrophysical sources at India-based Neutrino Observatory (INO). The ICAL detector is proposed to be of 51 kton with an average magnetic field of $\sim$1.3 T. The electromagnetic showers generated by high energy gamma rays at the atmosphere will produce down going muons through either muon pair-production or pion decay. The gamma rays can be traced by detecting these muons by ICAL. Most of the space and underground based experiments have detect them directly and indirectly but the advantage of using ICAL for their detection is to measure the $\mu^+$ to $\mu^-$ ratio, which is 1 in case of pair-production, at very high energy (≥ 50 GeV). Here we have shown its detection ability for the appropriate astrophysical 2FHL sources listed in “The Second Catalog of Hard Fermi-LAT Sources”, where the signal to noise ratio is suppressed by factor of 5σ for ICAL running period of 5 years for spectral index of ≤ 0.45.

Presentation type Oral

Authors

Dr Nitali Dash (Post Doctoral Fellow) Dr Reetanjali Moharana (Post Doctoral Fellow)

Presentation materials