Observations of Pulsars, PSR 1509-58 and PSR 1259-63, by CANGAROO 3.8 m Telescope

T. Sako; S. A. Dazeley; P. G. Edwards; T. Hara; Y. Hayami; S. Kamei; T. Kifune; R. Kita; T. Konishi; A. Masaike; Y. Matsubara; Y. Matsuoka; Y. Mizumoto; M. Mori; H. Muraishi; Y. Muraki; T. Naito; K. Nishijima; S. Ogio; J. R. Patterson; M. D. Roberts; G. P. Rowell; K. Sakurazawa; R. Susukita; A. Suzuki; R. Suzuki; T. Tamura; T. Tanimori; G. J. Thornton; S. Yanagita; T. Yoshida; T. Yoshikoshi

arXiv · astro-ph/9707012

Observations of Pulsars, PSR 1509-58 and PSR 1259-63, by CANGAROO 3.8 m Telescope

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Abstract

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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T. Sako, S. A. Dazeley, P. G. Edwards, T. Hara, Y. Hayami, S. Kamei, T. Kifune, R. Kita, T. Konishi, A. Masaike, Y. Matsubara, Y. Matsuoka, Y. Mizumoto, M. Mori, H. Muraishi, Y. Muraki, T. Naito, K. Nishijima, S. Ogio, J. R. Patterson, M. D. Roberts, G. P. Rowell, K. Sakurazawa, R. Susukita, A. Suzuki, R. Suzuki, T. Tamura, T. Tanimori, G. J. Thornton, S. Yanagita, T. Yoshida, T. Yoshikoshi. 1997-07-02. Observations of Pulsars, PSR 1509-58 and PSR 1259-63, by CANGAROO 3.8 m Telescope. https://arxiv.org/abs/astro-ph/9707012

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