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

On the spectrum and polarization of magnetar flare emission

TL;DR: In this article, a simple radiative transfer model was developed to simulate magnetar flare emission in the case of a steady trapped fireball, and the local spectral and polarization properties were obtained integrating the radiativetransfer equations for the two normal modes.
Journal ArticleDOI

Strong pulses detected from rotating radio transient J1819 − 1458

TL;DR: In this article, a dispersion measure DM = 195.7 +/- 0.3 pc cm(-3) by analyzing all the detected bursts was obtained, and the tri-band pattern of arrival time residuals was confirmed by a single pulse timing analysis.
Journal ArticleDOI

X-ray Perspective of the Twisted Magnetospheres of Magnetars

TL;DR: In this article, a self-consistent physical model that incorporates emission from the magnetar surface and its reprocessing in the three-dimensional (3D) twisted magnetosphere using a Monte Carlo technique is presented.
Journal ArticleDOI

Gravitational waves and gamma-ray bursts

Alessandra Corsi
- 01 Apr 2011 - 
TL;DR: In this paper, the authors give an overview of the multi-messenger study of gamma-ray bursts that can be carried out by using electromagnetic and gravitational wave observations, and underline the importance of joint electromagnetic and gravity wave searches, in the absence of a gamma ray trigger.
Journal ArticleDOI

Konus-Wind observations of the new soft gamma-ray repeater SGR 0501+4516

TL;DR: In this article, the authors report the analysis of five short bursts from the recently discovered soft gamma-ray repeater SGR 0501+4516, detected with Konus-Wind gamma ray burst spectrometer.
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)