A candidate gamma-ray pulsar in the supernova remnant CTA 1

Astronomy and Astrophysics – Astrophysics

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Accepted for publication in MNRAS. 6 pages including four PS figures. Uses mn.tex

Scientific paper

10.1046/j.1365-8711.1998.01263.x

We present a detailed analysis of the high energy gamma-ray source 2EG J0008+7307. The source has a steady flux and a hard spectrum, softening above 2 GeV. The properties of the gamma-ray source are suggestive of emission from a young pulsar in the spatially coincident CTA 1 supernova remnant, which has recently been found to have a non-thermal X-ray plerion. Our 95% uncertainty contour around the >1 GeV source position includes the point-like X-ray source at the centre of the plerion. We propose that this object is a young pulsar and is the most likely counterpart of 2EG J0008+7307.

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