A candidate gamma-ray pulsar in the supernova remnant CTA 1
Abstract
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.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- April 1998
- DOI:
- 10.1046/j.1365-8711.1998.01263.x
- arXiv:
- arXiv:astro-ph/9710111
- Bibcode:
- 1998MNRAS.295..819B
- Keywords:
-
- PULSARS: GENERAL;
- ISM: INDIVIDUAL: CTA 1;
- ISM: INDIVIDUAL: G119.5+10.2;
- SUPERNOVA REMNANTS;
- GAMMA-RAYS: OBSERVATIONS;
- X-RAYS: ISM;
- Astrophysics
- E-Print:
- Accepted for publication in MNRAS. 6 pages including four PS figures. Uses mn.tex