12 Citations
RXTE and “Anomalous” X‐ray Pulsars
- Physics
- 2004
We review the observational properties of the so‐called “anomalous X‐ray pulsars,” a class of young neutron stars having properties very different from most of the population. RXTE has provided…
Magnetars: structure and evolution from p-star models
- Physics
- 2006
P-stars are compact stars made of up-and-down quarks in β -equilibrium with electrons in a chromomagnetic condensate. We discuss p-stars endowed with super strong dipolar magnetic field that,…
Red Noise in Anomalous X‐ray Pulsar Timing Residuals
- Physics
- 2008
Anomalous X‐ray Pulsars (AXPs), thought to be magnetars, exhibit poorly understood deviations from a simple spin‐down called “timing noise”. AXP timing noise has strong low‐frequency components which…
Magnetars as cooling neutron stars with internal heating
- Physics
- 2006
We study thermal structure and evolution of magnetars as cooling neutron stars with a phenomenological heat source in a spherical internal layer. We explore the location of this layer as well as the…
Studies on Axions as the Energy Source in Magnetar
- Physics
- 2014
Highly magnetized neutron stars known as magnetars are some of the most interesting objects in the Universe. Non-baryonic dark matter candidate axions are produced in the highly magnetized neutron…
Cooling of magnetars with internal layer heating
- Physics
- 2007
Abstract
We model thermal evolution of magnetars with a phenomenological heat source in a spherical internal layer and compare the results with observations of persistent thermal radiation from…
Atmospheres of magnetized neutron stars: Vacuum polarization and partially ionized models
- Physics
- 2004
Condensed surfaces of magnetic neutron stars, thermal surface emission, and particle acceleration above pulsar polar caps
- Physics
- 2007
Recent calculations indicate that the cohesive energy of condensed matter increases with magnetic field strength and becomes very significant at magnetar-like fields (e.g. 10 keV at 3 × 10 14 G for…
What is Special about HBRPs
- Physics
- 2006
The Parkes Multibeam Survey led to the identification of a number of long-period radio pulsars with magnetic field well above the `quantum critical field' of ~4.4×1013 G (HBRPs). Traditional pulsar…
On a possible connection between wormholes and soft gamma repeaters
- Physics
- 2010
We consider and discuss the observational properties of gamma-ray bursts transmitted by hypothetical wormholes. We show that the known sources of soft gamma repeaters (SGR) cannot be wormhole…
References
SHOWING 1-10 OF 46 REFERENCES
Magnetar-like X-ray bursts from an anomalous X-ray pulsar
- PhysicsNature
- 2002
Two X-ray bursts, with properties similar to those of SGRs, from the direction of the anomalousX-ray pulsar 1E1048.1 - 5937.1 imply a close relationship (perhaps evolutionary) between AXPs and S GRs, with both being magnetars.
An optical counterpart to the anomalous X-ray pulsar 4U0142+61
- PhysicsNature
- 2000
Deep optical observations of the field around 4U0142+61, which is the brightest AXP in X-rays, are reported, and an object with peculiar optical colours at the position of the X-ray source is found, and it is argued that it is the optical counterpart.
Diagnosing Magnetars with Transient Cooling
- Physics
- 2002
Transient X-ray emission, with an approximate t-0.7 decay, was observed from SGR 1900+14 over 40 days following the giant flare of 1998 August 27. We calculate in detail the diffusion of heat to the…
The Soft Gamma Repeaters as Very Strongly Magnetized Neutron Stars. II. Quiescent Neutrino, X-Ray, and Alfvén Wave Emission
- Physics
- 1996
We calculate the quiescent X-ray, neutrino, and Alfvén wave emission from a neutron star with a very strong magnetic field, Bdipole ~ 1014 − 1015 G and Binterior ~ (5–10) × 1015 G. These results are…
Do magnetars glitch? Timing irregularities in anomalous X-ray pulsars
- Physics
- 1999
We examine the timing history of several anomalous X-ray pulsars (AXPs), and find that they exhibit spin-down irregularities that are statistically similar to those of radio pulsars. We propose that…
Optical pulsations from the anomalous X-ray pulsar 4U0142+61
- PhysicsNature
- 2002
The pulsed fraction of optical light is five to ten times greater than that of soft X-rays, from which it is concluded that 4U0142+61 is a magnetar, which establishes a direct relationship between AXPs and the soft γ-ray repeaters, the evolutionary connection betweenAXPs, SGRs and radio pulsars remains controversial.
The Quiescent Counterpart of the Soft Gamma-Ray Repeater SGR 0526–66
- Physics
- 2003
It is now commonly believed that soft gamma-ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are magnetars—neutron stars powered by their magnetic fields. However, what differentiates these…
Proton Cyclotron Features in Thermal Spectra of Ultramagnetized Neutron Stars
- Physics
- 2001
A great deal of interest has been recently raised in connection with the possibility that soft γ-ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) contain magnetars, young neutron stars endowed…
Electrodynamics of Magnetars: Implications for the Persistent X-Ray Emission and Spin-down of the Soft Gamma Repeaters and Anomalous X-Ray Pulsars
- Physics
- 2001
We consider the structure of neutron star magnetospheres threaded by large-scale electrical currents and the effect of resonant Compton scattering by the charge carriers (both electrons and ions) on…
X-ray observations of the high magnetic field radio pulsar psr j1814-1744
- Physics
- 2000
PSR J1814-1744 is a 4 s radio pulsar with surface dipole magnetic field strength 5.5 × 1013 G, inferred assuming simple magnetic dipole braking. This pulsar's spin parameters are very similar to…