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
More filters
Journal ArticleDOI
Phase resolved spectroscopic study of the isolated neutron star RBS 1223 (1RXS J130848.6+212708)
Valeri Hambaryan,Valery F. Suleimanov,A. D. Schwope,Ralph Neuhaeuser,Klaus Werner,Alexander Y. Potekhin +5 more
TL;DR: In this article, a model with condensed iron surface and partially ionized hydrogen thin atmosphere above it was used to fit the observed general spectral shape and the broad absorption feature observed at 0.3 keV in different spin phases of RBS 1223.
Journal ArticleDOI
Fermi/Gamma-ray burst monitor observations of SGR J0501+4516 bursts
Lin Lin,Lin Lin,Chryssa Kouveliotou,Matthew G. Baring,Alexander J. van der Horst,Sylvain Guiriec,Peter M. Woods,Ersin Gogus,Yuki Kaneko,Jeffrey D. Scargle,Jonathan Granot,Robert D. Preece,Andreas von Kienlin,Vandiver Chaplin,Anna L. Watts,Ralph A. M. J. Wijers,Shuang-Nan Zhang,Narayan Bhat,Mark H. Finger,Neil Gehrels,Alice K. Harding,Lex Kaper,Victoria M. Kaspi,Julie McEnery,Charles A. Meegan,W. S. Paciesas,Asaf Pe'er,Enrico Ramirez-Ruiz,Michiel van der Klis,Stefanie Wachter,Colleen A. Wilson-Hodge +30 more
TL;DR: In this article, the temporal and spectral analyses of 29 bursts from SGR J0501+4516, detected with the gamma-ray burst monitor on board the Fermi Gamma-ray Space Telescope during 13 days of the source's activation in 2008 (August 22- September 3).
Journal ArticleDOI
Simulated magnetic field expulsion in neutron star cores
J. G. Elfritz,José A. Pons,Nanda Rea,Nanda Rea,Konstantinos Glampedakis,Konstantinos Glampedakis,Daniele Viganò +6 more
TL;DR: In this paper, the authors acknowledge support from the grants AYA2012-39303 and SGR 2014-1073 and D.G.E. and N.R.P.
Journal ArticleDOI
X-ray emission from hess j1731-347/snr g353.6-0.7 and central compact source xmms j173203-344518
TL;DR: In this article, the authors show that spatially resolved X-ray spectra can generally be characterized by an absorbed power-law model with a photon index of similar to 2, typical of non-thermal emission.
Journal ArticleDOI
X-Ray Observations of High-B Radio Pulsars
S. A. Olausen,Weiwei Zhu,Julia Vogel,V. M. Kaspi,Andrew Lyne,Cristobal M. Espinoza,Ben Stappers,Richard N. Manchester,Maura McLaughlin +8 more
TL;DR: In this paper, a deep XMM-Newton observation of PSR J1734-3333 was performed to detect no X-ray pulsations from the source, setting a 1σ upper limit on the pulsed fraction of 60% in the 0.5-3-keV band, supporting the hypothesis that the magnetic field affects the observed thermal properties of pulsars.
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 - 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.