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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.
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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.
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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

Observations of a flaring X-ray pulsar in Dorado

TL;DR: In this article, the γ-ray burst detector Konus was used to detect hard X-ray bursts from the same source on 5 and 6 March, 1979, and the burst of 5 March was very intense, particularly in the initial phase and the second burst on 6 March was considerably weaker.
Journal ArticleDOI

Transient pulsed radio emission from a magnetar

TL;DR: It is shown that XTE J1810 - 197 emits bright, narrow, highly linearly polarized radio pulses, observed at every rotation, thereby establishing that magnetars can be radio pulsars.
Journal ArticleDOI

Short-duration gamma-ray bursts with extended emission from protomagnetar spin-down

TL;DR: In this paper, the authors proposed a model for short gamma-ray bursts (GRBs) with extended emission by a relativistic wind that extracts the rotational energy of the protomagnetar on a time-scale of ∼ 10-100 s.
Journal ArticleDOI

Corona of Magnetars

TL;DR: In this paper, a theoretical model for the formation of hot corona around strongly magnetized neutron stars was developed, and it was shown that the corona self-organizes quickly (on a millisecond timescale) into a quasi-steady state, with voltage 108-109 V along the magnetic lines.
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