The Anomalous X-ray Pulsars

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dc.creatorMereghetti, S.
dc.creatorChiarlone, L.
dc.creatorIsrael, G. L.
dc.creatorStella, L.
dc.date2002-05-08
dc.date.accessioned2026-07-07T02:03:36Z
dc.date.available2026-07-07T02:03:36Z
dc.descriptionThe Anomalous X-ray Pulsars (AXPs) are a small class of pulsars with spin periods in the 6-12 s range, very soft X-ray spectra, secular spin down on time scales of ~10^3-10^5 years, and lack of bright optical counterparts. Two, possibly three, of them are close to the centre of shell-like supernova remnants. AXPs are one of the most enigmatic classes of galactic high-energy sources. Isolated neutron stars powered by the loss of rotational energy can be excluded on energetic grounds. The models based on neutron stars involve either accretion (perhaps from a fossil disk around an isolated neutron star) or the decay of a very strong magnetic field (10^14-10^15 G). We review the models and the observational properties of AXPs, including recent XMM-Newton and Chandra observations. We also present some unpublished ASCA data.
dc.description15 pages, latex, 5 figures, 6 tables - Invited review to appear in "Neutron Stars, Pulsars and Supernova Remnants" (Proceedings of the 270. WE-Heraeus-Seminar, Bad Honnef, January 2002), eds. W. Becker, H.Lesch and J.Tr=FCmper, MPE-Report in press
dc.identifierhttps://arxiv.org/abs/astro-ph/0205122
dc.identifierhttp://arxiv.org/abs/astro-ph/0205122
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/4439
dc.subjectAstrophysics
dc.titleThe Anomalous X-ray Pulsars
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