Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-05-06
Astronomy and Astrophysics
Astrophysics
11 pages, 12 figures, Accepted in ApJ
Scientific paper
10.1086/589877
We observed the unidentified TeV gamma-ray source HESS J1804-216 with the CANGAROO-III atmospheric Cerenkov telescopes from May to July in 2006. We detected very high energy gamma rays above 600 GeV at the 10 sigma level in an effective exposure of 76 hr. We obtained a differential flux of (5.0+/-1.5_{stat}+/-1.6_{sys})\times 10^{-12}(E/1 TeV)^{-\alpha} cm^{-2}s^{-1}TeV^{-1} with a photon index \alpha of 2.69 +/- 0.30_{stat} +/- 0.34_{sys}, which is consistent with that of the H.E.S.S. observation in 2004. We also confirm the extended morphology of the source. By combining our result with multi-wavelength observations, we discuss the possible counterparts of HESS J1804-216 and the radiation mechanism based on leptonic and hadronic processes for a supernova remnant and a pulsar wind nebula.
Edwards Philip G.
Enomoto Ryoji
for the CANGAROO-III Collaboration
Higashi Yasuo
Kubo Harunobu
No associations
LandOfFree
Observation of Very High Energy Gamma Rays from HESS J1804-216 with CANGAROO-III Telescopes 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 Observation of Very High Energy Gamma Rays from HESS J1804-216 with CANGAROO-III Telescopes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of Very High Energy Gamma Rays from HESS J1804-216 with CANGAROO-III Telescopes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-209117