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- icrc2007@icrc2007.unam.mx
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Observations of extended VHE gamma-ray emission from MSH 15-52 with CANGAROO-III
Speakers
- Mr. Takeshi NAKAMORI
Primary authors
- Mr. Takeshi NAKAMORI (Kyoto University)
Co-authors
- Geoffry V. BICKNELL (Australian National University)
- Yusuke HIGASHI (Kyoto Univerisity)
- Yasufumi HIRAI (Ibaraki University)
- Kenji INOUE (Yamagata University)
- Chie ITOH (Ibaraki Prefectural University of Health Sciences)
- Shigeto KABUKI (Kyoto Univerisity)
- Fumiyoshi KAJINO (Konan University)
- Hideaki KATAGIRI (Hiroshima University)
- Akiko KAWACHI (Tokai University)
- Tadashi KIFUNE (Institute for Cosmic Ray Research, University of Tokyo)
- Ryuta KIUCHI (Institute for Cosmic Ray Research, University of Tokyo)
- Roger W.CLAY (University of Adelaide)
- Hidetoshi KUBO (Kyoto Univerisity)
- Junko KUSHIDA (Tokai University)
- Yutaka MATSUBARA (Solar-Terrestrial Environment Laboratory, Nagoya University)
- Taku MIZUKAMI (Kyoto Univerisity)
- Yoshihiko MIZUMOTO (National Astronomical Observatory of Japan)
- Ryoji MIZUNIWA (Tokai University)
- Masaki MORI (Institute for Cosmic Ray Research, University of Tokyo)
- Hiroshi MURAISHI (School of Allied Health Sciences, Kitasato University)
- Yasushi MURAKI (Solar-Terrestrial Environment Laboratory, Nagoya University)
- Tsuguya NAITO (Yamanashi Gakuin University)
- Philip G.EDWARDS (Australia Telescope National Facility, CSIRO)
- Shintaro NAKANO (Kyoto Univerisity)
- Daisuke NISHIDA (Kyoto Univerisity)
- Kyoshi NISHIJIMA (Tokai University)
- Michiko OHISHI (Institute for Cosmic Ray Research, University of Tokyo)
- Yukiko SAKAMORO (Tokai University)
- Atsushi SEKI (Tokai University)
- Victor STAMATESCU (University of Adelaide)
- Toshitaka SUZUKI (Ibaraki University)
- David L. SWABY (University of Adelaide)
- Toru TANIMORI (Kyoto Univerisity)
- Ryoji ENOMOTO (Institute for Cosmic Ray Research, University of Tokyo)
- Greg THORNTON (University of Adelaide)
- Fuyuki TOKANAI (Yamagata University)
- Tsuchiya KEN'ICHI (Kyoto Univerisity)
- Shio WATANABE (Kyoto Univerisity)
- Yosuke YAMADA (Konan University)
- Ei'ichi YAMAZAKI (Tokai University)
- Shohei YANAGITA (Ibaraki University)
- Tatsuo YOSHIDA (Ibaraki University)
- Takanori YOSHIKOSHI (Institute for Cosmic Ray Research, University of Tokyo)
- Youhei YUKAWA (Institute for Cosmic Ray Research, University of Tokyo)
- Shuichi GUNJI (Yamagata University)
- Satoshi HARA (Ibaraki Prefectural University of Health Sciences)
- Tadao HARA (Yamanashi Gakuin University)
- Takahiro HATTORI (Tokai University)
- Sei'ichi HAYASHI (Konan University)
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Abstract content
The gamma-ray pulsar PSR B1509-58, surrounded by the supernova remnant MSH15- 52, was expected to be a Very High Energy gamma-ray source. CANGAROO-I 3.8 m telescope reported a marginal detection of VHE gamma-rays above 1.9 TeV and recently H.E.S.S. detected an extended signal along with the pulsar jets, from sub-TeV to tens of TeV.
We observed MSH15-52 using CANGAROO-III imaging atmospheric Cherenkov telescope array located in South Australia, from April to June in 2006. We also detected gamma-rays above 860GeV with more than 5 sigma level during an effective exposure of 48.4 hours. Obtained differential flux of VHE gamma-ray is consistent with that of H.E.S.S., and its morphology shows an extended emission compared to our PSF.
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CANGAROO
Reference
Proceedings of the 30th International Cosmic Ray Conference; Rogelio Caballero, Juan Carlos D'Olivo, Gustavo Medina-Tanco, Lukas Nellen, Federico A. Sánchez, José F. Valdés-Galicia (eds.); Universidad Nacional Autónoma de México, Mexico City, Mexico, 2008; Vol. 2 (OG part 1), pages 629-632
