scispace - formally typeset
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.

read more

Citations
More filters
Journal ArticleDOI

Non‐linear electromagnetic waves in magnetosphere of a magnetar

TL;DR: In this article, a travelling wave ansatz is used to compute electromagnetic wave propagation through the magnetosphere of a magnetar, where the background field and electromagnetic waves are treated non-perturbatively and can be arbitrarily strong.
Journal ArticleDOI

General Relativistic White Dwarfs and Their Astrophysical Implications

TL;DR: In this paper, the authors consider applications of general relativistic uniformly-rotating white dwarfs to several astrophysical phenomena related to the spin-up and the spindown epochs and to delayed type Ia supernova explosions of super-Chandrasekhar white dwarFS, where they estimate the "spinning down" lifetime due to magnetic-dipole braking.
Journal ArticleDOI

The effect of X-ray dust scattering on a bright burst from the magnetar 1E 1547.0-5408

TL;DR: In this article, the authors show that most of the X-rays in the tail can be explained by dust scattering of the burst emission, except for the first ˜20-30 s.
Journal ArticleDOI

The peculiar isolated neutron star in the Carina Nebula - Deep XMM-Newton and ESO-VLT observations of 2XMM J104608.7-594306

TL;DR: In this article, the authors report the results of an observational campaign to study the properties of the source 2XMM J104608.7-594306, which is likely within the Carina Nebula and has a soft spectrum with absorption features and no magnetospheric emission.
Journal ArticleDOI

Special relativistic magnetohydrodynamic simulation of a two-component outflow powered by magnetic explosion on compact stars

TL;DR: In this paper, the nonlinear dynamics of outflows driven by magnetic explosion on the surface of a compact star is investigated through special relativistic magnetohydrodynamic simulations, where the authors adopt, as the initial equilibrium state, a spherical stellar object embedded in hydrostatic plasma which has a density {rho(r) {proportional_to} r{sup -}{alpha} and is threaded by a dipole magnetic field.
References
More filters
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.
Related Papers (5)