Open AccessA candidate gamma‐ray pulsar in the supernova remnant CTA 1
Author(s) -
Brazier K. T. S.,
Reimer O.,
Kanbach G.,
Carramiñana A.
Publication year - 1998
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.1998.01263.x
Subject(s) - physics , supernova remnant , pulsar , astrophysics , point source , near earth supernova , gamma ray , astronomy , flux (metallurgy) , x ray pulsar , pulsar wind nebula , compact star , gamma ray astronomy , supernova , neutron star , optics , materials science , metallurgy
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 per cent 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.