ARAN - Access to Research at NUI Galway

Search for Pulsed TeV Gamma-ray Emission from the Crab Pulsar

ARAN - Access to Research at NUI Galway

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dc.contributor.author Lang, Mark
dc.contributor.author Gillanders, Gary
dc.contributor.author Lessard, R. W.
dc.contributor.author Bond, I. H.
dc.contributor.author Bradbury, S. M.
dc.contributor.author Buckley, J. H.
dc.contributor.author Burdett, A. M.
dc.contributor.author Carter-Lewis, D. A.
dc.contributor.author Catanese, M.
dc.contributor.author Cawley, M. F.
dc.contributor.author D'Vali, M.
dc.contributor.author Fegan, D. J.
dc.contributor.author Finley, J. P.
dc.contributor.author Gaidos, J. A.
dc.contributor.author Gillanders, G. H.
dc.contributor.author Hall, T.
dc.contributor.author Hillas, A. M.
dc.contributor.author Krennrich, F.
dc.contributor.author Lang, M. J.
dc.contributor.author Masterson, C.
dc.contributor.author Moriarty, P.
dc.contributor.author Quinn, J.
dc.contributor.author Rose, H. J.
dc.contributor.author Samuelson, F. W.
dc.contributor.author Sembroski, G. H.
dc.contributor.author Srinivasan, R.
dc.contributor.author Vassiliev, V. V.
dc.contributor.author Weekes, T. C.
dc.date.accessioned 2012-01-20T10:31:21Z
dc.date.available 2012-01-20T10:31:21Z
dc.date.issued 1999
dc.identifier.uri http://hdl.handle.net/10379/2489
dc.description.abstract We present the results of a search for pulsed TeV emission from the Crab pulsar using the Whipple Observatory's 10 m gamma-ray telescope. The direction of the Crab pulsar was observed for a total of 73.4 hours between 1994 November and 1997 March. During this period the Whipple 10 m telescope was operated at its lowest energy threshold to date. Spectral analysis techniques were applied to search for the presence of a gamma-ray signal from the Crab pulsar over the energy band 250 GeV to 4 TeV. We do not see any evidence of the 33 ms pulsations present in other energy bands from the Crab pulsar. The 99.9% confidence level upper limit for pulsed emission above 250 GeV is derived to be 4.8x10^-12 cm^-2 s^-1 or <3% of the steady flux from the Crab Nebula. These results imply a sharp cut-off of the power-law spectrum seen by the EGRET instrument on the Compton Gamma-Ray Observatory. If the cut-off is exponential, it must begin at 60 GeV or lower to accommodate these upper limits. en_US
dc.format application/pdf en_US
dc.language.iso en en_US
dc.subject Astrophysics en_US
dc.subject Physics en_US
dc.title Search for Pulsed TeV Gamma-ray Emission from the Crab Pulsar en_US
dc.type Article en_US
dc.local.publishedsource http://arxiv.org/pdf/astro-ph/9912520 en_US
dc.description.peer-reviewed peer-reviewed en_US
dc.local.authors R.W. Lessard, I.H. Bond, S.M. Bradbury, J.H. Buckley, A.M. Burdett, D.A. Carter-Lewis, M. Catanese, M.F. Cawley, M. D'Vali, D.J. Fegan, J.P. Finley, J.A. Gaidos, G.H. Gillanders, T. Hall, A.M. Hillas, F. Krennrich, M.J. Lang, C. Masterson, P. Moriarty, J. Quinn, H.J. Rose, F.W. Samuelson, G.H. Sembroski, R. Srinivasan, V.V. Vassiliev and T.C. Weekes
dc.local.arxivid astro-ph/9912520

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