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Title:
Discovery of the Young, Energetic Radio Pulsar PSR J1105-6107
Authors:
Kaspi, V. M.; Bailes, M.; Manchester, R. N.; Stappers, B. W.; Sandhu, J. S.; Navarro, J.; D'Amico, N.
Publication:
Astrophysical Journal v.485, p.820 (ApJ Homepage)
Publication Date:
08/1997
Origin:
APJ
ApJ Keywords:
GAMMA RAYS: OBSERVATIONS, STARS: NEUTRON, STARS: PULSARS: INDIVIDUAL ALPHANUMERIC: PSR J1105-, 107, ISM: SUPERNOVA REMNANTS
DOI:
10.1086/304462
Bibliographic Code:
1997ApJ...485..820K

Abstract

We report the discovery and follow-up timing observations of the 63 ms radio pulsar, PSR J1105-6107. The pulsar is young, having a characteristic age of only 63 kyr and, from its dispersion measure, is estimated to be at a distance of ~7 kpc from the Sun. We consider its possible association with the nearby supernova remnant G290.1-0.8 (MSH 11-61A); an association requires that the proper motion of the pulsar be ~22 mas yr-1 (corresponding to ~650 km s-1 for a distance of 7 kpc) directed away from the remnant center, assuming that the characteristic age is the true age. The spin-down luminosity of the pulsar, 2.5 x 1036 ergs s-1, is in the top 1% of all known pulsar spin-down luminosities. Given its estimated distance, PSR J1105-6107 is therefore likely to be observable at high energies. Indeed, it is coincident with the known CGRO/EGRET source 2EG J1103-6106; we consider the possible association and conclude that it is likely.
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