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Title:
INTEGRAL detection of the pulsar wind nebula in PSR J1846-0258
Authors:
McBride, V. A.; Dean, A. J.; Bazzano, A.; Bird, A. J.; Hill, A. B.; de Rosa, A.; Landi, R.; Sguera, V.; Malizia, A.
Affiliation:
AA(School of Physics & Astronomy, University of Southampton, Highfield, SO17 1BJ, UK ), AB(School of Physics & Astronomy, University of Southampton, Highfield, SO17 1BJ, UK), AC(INAF/IASF, via del Fosso del Cavaliere 100, Roma 00113, Italy), AD(School of Physics & Astronomy, University of Southampton, Highfield, SO17 1BJ, UK), AE(School of Physics & Astronomy, University of Southampton, Highfield, SO17 1BJ, UK), AF(INAF/IASF, via del Fosso del Cavaliere 100, Roma 00113, Italy), AG(INAF/IASF, via P. Gobetti 101, Bologna 40129, Italy), AH(INAF/IASF, via P. Gobetti 101, Bologna 40129, Italy), AI(INAF/IASF, via P. Gobetti 101, Bologna 40129, Italy)
Publication:
Astronomy and Astrophysics, Volume 477, Issue 1, January I 2008, pp.249-253 (A&A Homepage)
Publication Date:
01/2008
Origin:
EDP Sciences
Keywords:
stars: pulsars: individual: PSR J1846-0258, ISM: supernova remnants, gamma rays: observations
DOI:
10.1051/0004-6361:20078432
Bibliographic Code:
2008A&A...477..249M

Abstract

Aims:We communicate the detection of soft (20-200 keV) γ-rays from the pulsar and pulsar wind nebula of PSR J1846-0258 and aim to identify the component of the system which is responsible for the γ-ray emission.
Methods: We combine spectral information from the INTEGRAL γ-ray mission with archival data from the Chandra X-ray Observatory to pinpoint the source of soft γ-ray emission.
Results: Our analysis shows that the soft γ-rays detected from PSR J1846-0258 include emission from both the pulsar and the pulsar wind nebula, but the measured spectral shape is dominated by the pulsar wind nebula. We discuss PSR J1846-0258 in the context of rotation-powered pulsars with high magnetic field strengths and review the anomalously high fraction of spin-down luminosity converted into X- and γ-ray emission in light of a possible overestimate of the distance to this pulsar.
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