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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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TL;DR: In this paper, the neutrino energy losses from a plasma-filled region at the long tail stage of the SGR 0526-66, SGR 1806-20, and SGR 1900+14 giant flares were calculated.
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Bursts and Flares from Highly Magnetic Pulsars

TL;DR: The results obtained through the study of the transient phenomena (mainly burst and flares) displayed by some of them and covering more than 10 orders of magnitudes in terms of time scale variability (from fraction of milli-seconds up to years) and flux (from 10-9 up to 1 ergs s-1 cm-2) are presented and discussed with particular emphasis on the most recent results obtained as discussed by the authors.
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Modeling the structure of magnetic fields in Neutron Stars: from the interior to the magnetosphere

TL;DR: In this paper, the properties of equilibrium models of magnetized neutron stars are discussed, and how internal and external currents can be related, considering also their stability, relevant for their origin and possibly connected to events like SNe and GRBs.
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High-energy gamma-ray emission from SNR G57.2+0.8 hosting SGR J1935+2154

TL;DR: In this paper, the contribution of supernova remnants (SNRs) to high energy and very high energy gamma-ray (VHE, $E > 100$ GeV) emission due to cosmic-ray acceleration from SNR G57.2+0.8 and SGR J1935+2154 with the use of the GALPROP code is analyzed.
References
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Book

Compact Stellar X-ray Sources

TL;DR: A decade of X-ray sources and their evolution is described in this paper, with a focus on the formation and evolution of super-soft sources and the formation of compact stellar sources.
Journal ArticleDOI

Formation of very strongly magnetized neutron stars - Implications for gamma-ray bursts

TL;DR: In this article, it is argued that a convective dynamo can also generate a very strong dipole field after the merger of a neutron star binary, but only if the merged star survives for as long as about 10-100 ms.
Journal ArticleDOI

The Soft Gamma Repeaters as Very Strongly Magnetized Neutron Stars. II. Quiescent Neutrino, X-Ray, and Alfvén Wave Emission

TL;DR: In this article, the decay rate of the core field is a very strong function of temperature and therefore of the magnetic flux density, which is not present in the decay of the weaker fields associated with ordinary radio pulsars.
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