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Type: Journal article
Title: A search for sub-TeV gamma rays from the Vela pulsar region with CANGAROO-III
Author: Enomoto, R.
Tsuchiya, K.
Adachi, Y.
Kabuki, S.
Edwards, P.
Asahara, A.
Bicknell, G.
Clay, R.
Doi, Y.
Gunji, S.
Hara, S.
Hara, T.
Hattori, T.
Hayashi, S.
Higashi, T.
Inoue, R.
Itoh, C.
Kajino, F.
Katagiri, H.
Kawachi, A.
et al.
Citation: Astrophysical Journal, 2006; 638(1):397-408
Publisher: Univ Chicago Press
Issue Date: 2006
ISSN: 0004-637X
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.
Description: © 2006 The American Astronomical Society. All rights reserved. Submitted to Cornell University’s online archive in 2006 by Ryoji Enomoto. Post-print sourced from
RMID: 0020060015
DOI: 10.1086/498858
Appears in Collections:Physics publications

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