In this report we show that a vacuum is a nonlinear optical medium and discuss what the
optical phenomena are that should exist in the framework of the standard model of particle …

The early 21st century is witnessing a breakthrough in the study of the thermal radiation of
neutron stars. Observations with modern space telescopes have provided a wealth of …

Cyclotron lines, also called cyclotron resonant scattering features are spectral features,
generally appearing in absorption, in the X-ray spectra of objects containing highly …

There has recently been growing evidence for the existence of neutron stars possessing
magnetic fields with strengths that exceed the quantum critical field strength of 4.4× 10 13 G …

Presently seven nearby radio-quiet isolated neutron stars discovered in ROSAT data and
characterized by thermal X-ray spectra are known. They exhibit very similar properties and …

Since the advent of powerful new X-ray observatories, NASA's Rossi X-ray Timing Explorer
(RXTE), the Italian-Dutch BeppoSAX mission, XMM-Newton and Chandra, a number of …

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 …

The seven soft, thermal sources discovered by ROSAT offer an unprecedented opportunity
to unveil the temperature and magnetic field surface distribution of isolated neutron stars …

Axions may be produced thermally inside the cores of neutron stars (NSs), escape the stars
due to their feeble interactions with matter, and subsequently convert into x rays in the …

Observations of surface emission from isolated neutron stars (NSs) provide unique
challenges to theoretical modelling of radiative transfer in magnetized NS atmospheres …