The strongest cosmic magnets: soft gamma-ray repeaters and anomalous X-ray pulsars
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
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On the connection of gamma-ray bursts and X-ray flashes in the BATSE and RHESSI databases
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TL;DR: In this article, the relation between X-ray flashes and gamma-ray bursts was checked for the BATSE and RHESSI databases, respectively, using an empirical definition of XRFs introduced by other authors earlier.
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Anomalous x-ray pulsars and soft gamma-ray repeaters in the outer gap model: confronting fermi observations
Hao Tong,L. M. Song,Renxin Xu +2 more
TL;DR: In this paper, the theoretical spectra of anomalous X-ray pulsars and soft gamma-ray repeaters with sufficient observational parameters were calculated and shown to be magnetars.
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Estimation of compact binary coalescense rates from short gamma-ray burst redshift measurements
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Radiative properties of magnetic neutron stars with metallic surfaces and thin atmospheres
Alexander Y. Potekhin,Alexander Y. Potekhin,Valery F. Suleimanov,Valery F. Suleimanov,M. van Adelsberg,Klaus Werner +5 more
TL;DR: In this article, the authors developed a simple analytic description of the emission properties (spectrum and polarization) of the condensed, strongly magnetized surface of neutron stars, with various inclinations of the magnetic field lines and radiation beam with respect to the surface and each other.
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A solar super‐flare as cause for the 14C variation in AD 774/5?
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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 - I. Radiative mechanism for outbursts
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.
Journal ArticleDOI
An X-ray pulsar with a superstrong magnetic field in the soft γ-ray repeater SGR1806 − 20
Chryssa Kouveliotou,Chryssa Kouveliotou,S. Dieters,S. Dieters,Tod E. Strohmayer,Tod E. Strohmayer,J. van Paradijs,Gerald J. Fishman,Charles A. Meegan,Kevin Hurley,Jefferson M. Kommers,Ian Smith,Dale A. Frail,Toshio Murakami +13 more
TL;DR: In this paper, the authors reported the discovery of pulsations in the persistent X-ray flux of SGR1806-20, with a period of 7.47 s and a spindown rate of 2.6 x 10(exp -3) s/yr.