A&A 477, 249-253 (2008)
INTEGRAL detection of the pulsar wind nebula in PSR J1846-0258V. A. McBride1, A. J. Dean1, A. Bazzano2, A. J. Bird1, A. B. Hill1, A. De Rosa2, R. Landi3, V. Sguera3, and A. Malizia3
1 School of Physics & Astronomy, University of Southampton, Highfield, SO17 1BJ, UK
2 INAF/IASF, via del Fosso del Cavaliere 100, Roma 00113, Italy
3 INAF/IASF, via P. Gobetti 101, Bologna 40129, Italy
(Received 7 August 2007 / Accepted 26 October 2007 )
Aims.We communicate the detection of soft (20-200 keV) -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 -ray emission.
Methods.We combine spectral information from the INTEGRAL -ray mission with archival data from the Chandra X-ray Observatory to pinpoint the source of soft -ray emission.
Results.Our analysis shows that the soft -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 -ray emission in light of a possible overestimate of the distance to this pulsar.
Key words: stars: pulsars: individual: PSR J1846-0258 -- ISM: supernova remnants -- gamma rays: observations
© ESO 2007