CANGAROO-III Observation of TeV Gamma Rays from the vicinity of PSR B1 706-44

R.Enomoto , J.Kushida , T.Nakamori , T.Kifune , G.V.Bicknell , R.W.Clay , P.G.Edwards , S.Gunji

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S.Hara T.Hara T.Hattori S.Hayashi Y.Higashi Y.Hirai K.Inoue H.Ishioka S.Kabuki F.Kajino H.Katagiri A.Kawachi R.Kiuchi H.Kubo T.Kunisawa T.Matoba Y.Matsubara I.Matsuzawa T.Mizukami Y.Mizumura Y.Mizumoto M.Mori H.Muraishi T.Naito S.Nakano K.Nishijima M.Ohishi Y.Otake S.Ryoki K.Saito Y.Sakamoto A.Seki V.Stamatescu T.Suzuki D.L.Swaby T.Tanimori G.Thornton F.Tokanai K.Tsuchiya S.Watanabe E.Yamazaki S.Yanagita T.Yoshida T.Yoshikoshi Y.Yukawa (CANGAROO-III)

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classification 🌌 astro-ph.HE

keywords emissionb1706cangaroo-iiieventsgammaobservationraysvicinity

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Observation by the CANGAROO-III stereoscopic system of the Imaging Cherenkov Telescope has detected extended emission of TeV gamma rays in the vicinity of the pulsar PSR B1706$-$44. The strength of the signal observed as gamma-ray-like events varies when we apply different ways of emulating background events. The reason for such uncertainties is argued in relevance to gamma-rays embedded in the "off-source data", that is, unknown sources and diffuse emission in the Galactic plane, namely, the existence of a complex structure of TeV gamma-ray emission around PSR B1706$-$44.

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CANGAROO-III Observation of TeV Gamma Rays from the vicinity of PSR B1 706-44

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