X-ray emission from isolated neutron stars

  title={X-ray emission from isolated neutron stars},
  author={Sandro Mereghetti},
  journal={arXiv: High Energy Astrophysical Phenomena},
  • S. Mereghetti
  • Published 17 August 2010
  • Physics
  • arXiv: High Energy Astrophysical Phenomena
X-ray emission is a common feature of all varieties of isolated neutron stars (INS) and, thanks to the advent of sensitive instruments with good spectroscopic, timing, and imaging capabilities, X-ray observations have become an essential tool in the study of these objects. Non-thermal X-rays from young, energetic radio pulsars have been detected since the beginning of X-ray astronomy, and the long-sought thermal emission from cooling neutron star’s surfaces can now be studied in detail in many… 
Thermal emission from magnetised neutron stars
X-ray dim isolated neutron stars and magnetars are neutron stars with strong magnetic fields, B ∼ 1013− 1015 G. Under these magnetic fields, the properties of the matter and the vacuum are expected
X-ray spectral and timing properties of the high Mass X-ray binaries GX 304-1 and Vela X-1
Accreting X-ray pulsars are binary systems hosting a rotating, highly magnetized neutron star, and an optical companion star whose expelled plasma is accreted onto the compact object, a process that
Statistical ages and the cooling rate of X-ray dim isolated neutron stars
ABSTRACT The cooling theory of neutron stars is corroborated by its comparison with observa-tions of thermally emitting isolated neutron stars and accreting neutron stars in binarysystems. An
Observational Constraints on Neutron Star Masses and Radii
Precise and reliable measurements of the masses and radii of neutron stars with a variety of masses would provide valuable guidance for improving models of the properties of cold matter with
Magnetic field decay in neutron stars: from Soft Gamma Repeaters to
The recent discovery of the ‘weak-field, old magnetar’ soft gamma repeater (SGR) J0418+5729, whose dipole magnetic field, Bdip, is less than 7.5 × 10 12 G, has raised perplexing questions: how can
High Energy Observational Investigations of Supernova Remnants and their Interactions with Surroundings
Here we review the effort of Fermi Asian Network (FAN) in exploring the supernova remnants (SNRs) with state-of-art high energy observatories, including Fermi Gamma-ray Space Telescope and Chandra
Observational diversity of magnetized neutron stars
An introductory review for non-astrophysicists about the observational properties of highly-magnetized NSs, and how the five fundamental quantities of NSs change with evolution of, and vary depending on the class of, the NSs is presented.
We report on XMM-Newton and Chandra observations of the Galactic supernova remnant candidate G38.7-1.4, together with complementary radio, infrared, and γ-ray data. An approximately elliptical X-ray
Wind accretion onto compact objects
X-ray emission associated to accretion onto compact objects displays important levels of photometric and spectroscopic time-variability. When the accretor orbits a Supergiant star, it captures a
Surface emission from neutron stars and implications for the physics of their interiors
Neutron stars are associated with diverse physical phenomena that take place in conditions characterized by ultrahigh densities as well as intense gravitational, magnetic and radiation fields.


Magnetar-like X-ray bursts from an anomalous X-ray pulsar
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.
X-ray emission from isolated neutron stars
Transient pulsed radio emission from a magnetar
It is shown that XTE J1810 - 197 emits bright, narrow, highly linearly polarized radio pulses, observed at every rotation, thereby establishing that magnetars can be radio pulsars.
X-ray spectra from magnetar candidates – I. Monte Carlo simulations in the non-relativistic regime
The anomalous X-ray pulsars (AXPs) and soft γ -repeaters (SGRs) are peculiar high-energy sources believed to host a magnetar, an ultramagnetized neutron star with surface magnetic field in the
The Discovery of an Anomalous X-Ray Pulsar in the Supernova Remnant Kes 73
We report the discovery of pulsed X-ray emission from the compact source 1E 1841-045, using data obtained with the Advanced Satellite for Cosmology and Astrophysics. The X-ray source is located in
The isolated neutron star X-ray pulsars RX J0420.0-5022 and RX J0806.4-4123: New X-ray and optical observations
We report on the analysis of new X-ray data obtained with XMM-Newton and Chandra from two ROSAT-discovered X-ray dim isolated neutron stars (XDINs). RX J0806.4−4123 was observed with XMM-Newton in
Compact stellar X-ray sources
1. Accreting neutron stars and black holes: a decade of discoveries D. Psaltis 2. Rapid X-ray variability M. van der Klis 3. New views of thermonuclear bursts T. Strohmayer and L. Bildsten 4. Black
Proper motions of thermally emitting isolated neutron stars measured with Chandra
The remarkable astrometric capabilities of the Chandra Observatory offer the possibility to measure proper motions of X-ray sources with an unprecedented accuracy in this wavelength range. We
The Soft Gamma Repeaters as Very Strongly Magnetized Neutron Stars. II. Quiescent Neutrino, X-Ray, and Alfvén Wave Emission
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
The strongest cosmic magnets: soft gamma-ray repeaters and anomalous X-ray pulsars
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