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The Search for pulsed TeV gamma-ray sources

Published online by Cambridge University Press:  12 May 2006

Andrew McCann ,
Michael Daniel ,
David J. Fegan ,
Stephen Gammell ,
Peter Cogan  and
John Quinn
Andrew McCann
Affiliation:
School of Physics, University College Dublin email: andrew@ferdia.ucd.ie Present address: School of Physics, University College Dublin.
Michael Daniel
Affiliation:
School of Physics, University College Dublin email: andrew@ferdia.ucd.ie
David J. Fegan
Affiliation:
School of Physics, University College Dublin email: andrew@ferdia.ucd.ie
Stephen Gammell
Affiliation:
School of Physics, University College Dublin email: andrew@ferdia.ucd.ie
Peter Cogan
Affiliation:
School of Physics, University College Dublin email: andrew@ferdia.ucd.ie
John Quinn
Affiliation:
School of Physics, University College Dublin email: andrew@ferdia.ucd.ie
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Abstract

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The EGRET experiment detected pulsed emission from several pulsars in the HE energy range 20 MeV < E < 10 GeV. However, no pulsed emission has ever been detected above 300 GeV, which points to a cut-off in pulsed emission somewhere between ∼10 GeV and ∼300 GeV. Software has been developed at UCD which is capable of examining gamma-ray events in the energy range $E>130$ GeV and detecting the signature periodicity of pulsars if it exists. Data recorded on the Crab pulsar with the Whipple Imaging Atmospheric Cerenkov Telescope has been analysed with this software and upper limits on pulsed emission have been obtained.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Symposium S230: Populations of High Energy Sources in Galaxies , August 2005 , pp. 107 - 108
Copyright
2006 International Astronomical Union