Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009sf2a.conf..131b&link_type=abstract
SF2A-2009: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, held 29 June - 4 July 2009 in
Astronomy and Astrophysics
Astrophysics
4
Scientific paper
We have observed Crab nebula using the recently commissioned wavefront sampling high altitude (4270 m) array, HAGAR, at Hanle in the Ladakh region of the Himalayas. Regular source observations have begun with the complete setup of 7 telescopes since Sept. 2008. HAGAR is the first array of atmospheric Cherenkov telescopes established at a so high altitude and was designed to reach a relatively low threshold with quite a low mirror area (31 m^2). Estimation of the sensitivity of the experiment is undergoing using several hours of data from the direction of Crab nebula, the standard candle source of TeV gamma-ray astronomy. Data were acquired using the On-source/Off-source mode and by comparing these sky regions the strength of the gamma-ray signal could be estimated. Gamma-ray events arrive close to telescope axis direction while the cosmic-ray background events arrive from the whole field of view. We discuss our analysis procedures for the estimate of arrival direction, estimate of gamma-ray flux from Crab nebula and the sensitivity of the HAGAR system etc in this paper. Also preliminary results on blazars 1es2344+514 and Mkn421 will be presented.
Acharya Bobby Samir
Britto R. J.
Chitnis Varsha R.
Cowsik Ramanath
Dorji N.
No associations
LandOfFree
Gamma-Ray Source Observations with the HAGAR telescope system at Hanle in the Himalayas does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Gamma-Ray Source Observations with the HAGAR telescope system at Hanle in the Himalayas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gamma-Ray Source Observations with the HAGAR telescope system at Hanle in the Himalayas will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1151949