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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

Normal ground state of dense relativistic matter in a magnetic field

TL;DR: In this paper, the properties of the ground state of relativistic matter in a magnetic field are examined within the framework of a Nambu-Jona-Lasinio model.
Journal ArticleDOI

Search for Gravitational Wave Bursts from Six Magnetars

J. Abadie, +854 more
TL;DR: In this paper, the results of a search for GW bursts from six galactic magnetars that is sensitive to neutron star f-modes, thought to be the most efficient GW emitting oscillatory modes in compact stars, were presented.
Journal ArticleDOI

Observational diversity of magnetized neutron stars.

TL;DR: An introductory review for non-astrophysicists about the observational properties of highly-magnetized NSs, and how the five fundamental quantities of NSs change with evolution of, and vary depending on the class of, the NSs is presented.
Journal ArticleDOI

Atmospheres and radiating surfaces of neutron stars

TL;DR: In this article, the current status of the theory is reviewed with particular emphasis on neutron stars with strong magnetic fields, and radiative condensed surfaces of neutron stars and "thin" (finite) atmospheres are considered.
Journal ArticleDOI

Constraining the braking indices of magnetars

TL;DR: In this article, the authors estimate the mean braking indices of eight magnetars with supernova remnants (SNRs) and find that they cluster in the range of 1-42.
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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