Observations of Pulsars, PSR 1509-58 and PSR 1259-63, by CANGAROO 3.8 m Telescope
Sako, T. · Dazeley, S. A. · Edwards, P. G. · Hara, T. · Hayami, Y. · Kamei, S. · Kifune, T. · Kita, R. · Konishi, T. · Masaike, A. · Matsubara, Y. · Matsuoka, Y. · Mizumoto, Y. · Mori, M. · Muraishi, H. · Muraki, Y. · Naito, T. · Nishijima, K. · Ogio, S. · Patterson, J. R. · Roberts, M. D. · Rowell, G. P. · Sakurazawa, K. · Susukita, R. · Suzuki, A. · Suzuki, R. · Tamura, T. · Tanimori, T. · Thornton, G. J. · Yanagita, S. · Yoshida, T. · Yoshikoshi, T.
Original · EN
The data for VHE (TeV) gamma rays from young gamma-ray pulsar PSR1509-58 observed in 1996 with the CANGAROO 3.8m Cerenkov imaging telescope are presented, as well as the additional data from March to June of 1997. The high spin-down luminosity of the pulsar and the plerionic feature around the pulsar observed with radio and X-rays suggest that VHE gamma-ray emission is quite likely above the sensitivity of the CANGAROO telescope. The CANGAROO results on other pulsars, such as PSR1259-63, are also presented. PSR1259-63 is a highly eccentric X-ray binary system, which includes a high mass Be companion star, and a preliminary analysis on the data taken 4 months after the periastron in 1994 suggests emission of VHE gamma rays.
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