Year: 2006
Type: article
Abstract: We made stereoscopic observations of the Vela pulsar region with two of the 10 m diameter CANGAROO-III imaging atmospheric Cerenkov telescopes in 2004 January and February in a search for sub-TeV gamma rays from the pulsar and surrounding regions. We describe the observations, provide a detailed account of the calibration methods, and introduce the improved and bias-free analysis techniques employed for CANGAROO-III data. No evidence of gamma-ray emission is found from either the pulsar position or the previously reported position offset by 0 13, and the resulting upper limits are a factor of 5 less than the previously reported flux from observations with the CANGAROO-I 3.8 m telescope. Following the recent report by the H.E.S.S. group of TeV gamma-ray emission from the pulsar wind nebula, which is ~0 5 south of the pulsar position, we examined this region and found supporting evidence for emission extended over ~0 6.
Source: The Astrophysical Journal
DOI: 10.1086/498858
Authors: R. Enomoto, K. Tsuchiya, Y. Adachi, S. Kabuki, P. G. Edwards, A. Asahara, G. V. Bicknell, R. W. Clay, Y. Doi, S. Gunji, S. Hara, T. Hara, T. Hattori, Sei. Hayashi, Y. Higashi, R. Inoue, C. Itoh, F. Kajino, H. Katagiri, A. Kawachi, S. Kawasaki, T. Kifune, R. Kiuchi, K. Konno, L. T. Ksenofontov, H. Kubo, J. Kushida, Y. Matsubara, Y. Mizumoto, M. Mori, H. Muraishi, Y. Muraki, T. Naito, T. Nakamori, D. Nishida, K. Nishijima, M. Ohishi, J. R. Patterson, R. J. Protheroe, Y. Sakamoto, M. Sato, S. Suzuki, T. Suzuki, D. L. Swaby, T. Tanimori, H. Tanimura, G. J. Thornton, S. Watanabe, T. Yamaoka, M. Yamazaki, S. Yanagita, T. Yoshida, T. Yoshikoshi, M. Yuasa, Y. Yukawa
Institutions: Institute for Cosmic Ray Research, The University of Tokyo, Kyoto University, Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, Australian National University, The University of Adelaide, Yamagata University, Yamanashi Gakuin University, Tokai University, Konan University, National Institute of Radiological Sciences, Institute for Radiological Science, Shinshu University, Nagoya University, National Astronomical Observatory of Japan, Kitasato University, Ibaraki University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1995630602