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Open AccessJournal ArticleDOI

The strongest cosmic magnets: soft gamma-ray repeaters and anomalous X-ray pulsars

Sandro Mereghetti
- 08 Jul 2008 - 
- Vol. 15, Iss: 4, pp 225-287
Abstract
Two classes of X-ray pulsars, the anomalous X-ray pulsars and the soft gamma-ray repeaters, have been recognized in the last decade as the most promising candidates for being magnetars: isolated neutron stars powered by magnetic energy. I review the observational properties of these objects, focussing on the most recent results, and their interpretation in the magnetar model. Alternative explanations, in particular those based on accretion from residual disks, are also considered. The possible relations between these sources and other classes of neutron stars and astrophysical objects are also discussed.

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Citations
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Journal ArticleDOI

The mcgill magnetar catalog

TL;DR: In this paper, the authors present a catalog of the 26 currently known magnetars and magnetar candidates, and investigate and plot possible correlations between their timing, X-ray, and multiwavelength properties.
Journal ArticleDOI

Bright Supernovae from Magnetar Birth

TL;DR: In this paper, a rotating magnetar radiating according to the classic dipole formula could power a very luminous supernova and the peak luminosity would be most sensitive to the dipole field strength of the magnetar.
Journal ArticleDOI

The Astrophysics of Ultrahigh-Energy Cosmic Rays

TL;DR: In this paper, the main effects of propagation from cosmologically distant sources, including interactions with cosmic background radiation and magnetic fields, are discussed, leading to a survey of candidate sources and their signatures.
Journal ArticleDOI

The McGill Magnetar Catalog

TL;DR: In this paper, the authors present a catalog of the 26 currently known magnetars and magnetar candidates, and investigate and plot possible correlations between their timing, X-ray, and multiwavelength properties.
Journal ArticleDOI

Unifying the observational diversity of isolated neutron stars via magneto-thermal evolution models.

TL;DR: In this article, the authors present the results of 2D simulations of the fully-coupled evolution of temperature and magnetic field in neutron stars, including the state-of-the-art kinetic coefficients and, for the first time, the important effect of the Hall term.
References
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Journal ArticleDOI

On the possibility of identifying the short hard burst GRB 051103 with a giant flare from a soft gamma repeater in the M81 group of galaxies

TL;DR: The light curve, energy characteristics, and localization of the short hard burst GRB 051103 are considered in this article, and evidence for identifying this event with a giant flare from a soft gamma repeater in the nearby M81 group of interacting galaxies is discussed.
Journal ArticleDOI

The Distance to the Soft Gamma Repeater SGR 1627-41.

TL;DR: It is suggested that SGR 1627-41 is a neutron star with a high transverse velocity escaping the young SNR G337.0-0.1; this is the second SGR located near an extraordinarily massive GMC.
Journal ArticleDOI

Powering Anomalous X-Ray Pulsars by Neutron Star Cooling

TL;DR: In this paper, the authors estimate the thermal fluxes from young (t~1000 yr) ultramagnetized (B~1015 G) cooling neutron stars, and find that pulsed X-ray emission from objects such as 1E 1841-045 and 1E 2259+586, as well as many soft-gamma repeaters, can be explained by photon cooling if the neutron star possesses a thin insulating envelope of matter of low atomic weight at densities ρ<107-108 g cm−3.
Journal ArticleDOI

Anomalous X-ray pulsars: Persistent States with Fallback Disks

TL;DR: The anomalous X-ray pulsar 4U 0142+61 was recently detected in the mid infrared bands with the SPITZER Observatory (Wang, Chakrabarty & Kaplan 2006) as discussed by the authors.
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