A search for sub-TeV gamma rays from the Vela pulsar region with CANGAROO-III

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dc.contributor.authorEnomoto, R.
dc.contributor.authorTsuchiya, K.
dc.contributor.authorAdachi, Y.
dc.contributor.authorKabuki, S.
dc.contributor.authorEdwards, P.
dc.contributor.authorAsahara, A.
dc.contributor.authorBicknell, G.
dc.contributor.authorClay, R.
dc.contributor.authorDoi, Y.
dc.contributor.authorGunji, S.
dc.contributor.authorHara, S.
dc.contributor.authorHara, T.
dc.contributor.authorHattori, T.
dc.contributor.authorHayashi, S.
dc.contributor.authorHigashi, T.
dc.contributor.authorInoue, R.
dc.contributor.authorItoh, C.
dc.contributor.authorKajino, F.
dc.contributor.authorKatagiri, H.
dc.contributor.authorKawachi, A.
dc.contributor.authoret al.
dc.date.issued2006
dc.description© 2006 The American Astronomical Society. All rights reserved. Submitted to Cornell University’s online archive www.arXiv.org in 2006 by Ryoji Enomoto. Post-print sourced from www.arxiv.org.
dc.description.abstractWe 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.
dc.identifier.citationThe Astrophysical Journal (ApJ), 2006; 638(1):397-408
dc.identifier.doi10.1086/498858
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.orcidClay, R. [0000-0002-9040-9648]
dc.identifier.urihttp://hdl.handle.net/2440/23584
dc.language.isoen
dc.publisherUniv Chicago Press
dc.source.urihttps://doi.org/10.1086/498858
dc.titleA search for sub-TeV gamma rays from the Vela pulsar region with CANGAROO-III
dc.typeJournal article
pubs.publication-statusPublished

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