Observation of sub-TeV gamma rays from SS433/W50 with the CANGAROO-II telescope

S. Hayashi,F. Kajino,T. Naito,A. Asahara,G. V. Bicknell,R. W. Clay,Yasuo Doi,P. G. Edwards,R. Enomoto,Shuichi Gunji,Shinji Hara,T. Hara,Takahiro Hattori,C. Itoh,S. Kabuki,H. Katagiri,A. Kawachi,T. Kifune,L. T. Ksenofontov,H. Kubo, Takuya Kurihara,R. Kurosaka,J. Kushida,Y. Matsubara, Yoshimitsu Miyashita,Y. Mizumoto,M. Mori,H. Moro,H. Muraishi,Y. Muraki,T. Nakase,D. Nishida,K. Nishijima, M. Ohnishi,Ko Okumura, Joseph Patterson,R. J. Protheroe,N. Sakamoto,K. Sakurazawa,D. L. Swaby,T. Tanimori, Hidehiko Tanimura,G. Thornton, F. Tokania,Ken Tsuchiya,T. Uchida,S. Watanabe,T. Yamaoka,S. Yanagita,Tetsuya Yoshida,T. Yoshikoshi

ICRC（2003）

Cited 23|Views16

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Abstract

Observations of the western X-ray lobe region of SS433/W50 system were performed by the CANGAROO-II telescope in August and September, 2001, and July and September, 2002. Total observation times were 85 hours for ON source, and 80 hours for OFF source, respectively. We present analysis results of 2001 and 2002 data at the position where the hardest X-ray spectrum has been observed by ASCA.

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Key words

spectrum,gamma ray

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