Rigorous and approximate scaling laws for the photo-ionization cross-section of hydrogenic ions in magnetic fields

Wunner, G.; Ruder, H.; Schmitt, W.; Herold, H.; McDowell, M R C

doi:10.1093/mnras/198.3.769

Cited by 9 publications

(3 citation statements)

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“…Analogous similarity relations exist also for the cross sections of radiative transitions (Wunner et al 1982). However, all these relations are violated by motion across the magnetic field.…”

Section: One-electron Atoms and Ionsmentioning

confidence: 77%

“…In the approximation of an infinite nuclear mass, the energy of any one-electron ion is related to the H-atom energy as and O'Connel 1974). Analogous similarity relations exist also for the cross sections of radiative transitions (Wunner et al 1982). However, all these relations are violated by motion across the magnetic field.…”

Section: One-electron Atoms and Ionsmentioning

confidence: 99%

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Neutron Stars—Thermal Emitters

2014

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Confronting theoretical models with observations of thermal radiation emitted by neutron stars is one of the most important ways to understand the properties of both, superdense matter in the interiors of the neutron stars and dense magnetized plasmas in their outer layers. Here we review the theory of thermal emission from the surface layers of strongly magnetized neutron stars, and the main properties of the observational data. In particular, we focus on the nearby sources for which a clear thermal component has been detected, without being contaminated by other emission processes (magnetosphere, accretion, nebulae). We also discuss the applications of the modern theoretical models of the formation of spectra of strongly magnetized neutron stars to the observed thermally emitting objects.

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Section: One-electron Atoms and Ionsmentioning

confidence: 77%

Section: One-electron Atoms and Ionsmentioning

confidence: 99%

Neutron Stars—Thermal Emitters

2014

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“…Thus one sees, in particular, that the adiabatic approximation for the single-electron ions is applicable at γ ≫ Z 2 n , which is a weaker condition than for manyelectron atoms. Analogous similarity relations exist also for the cross sections of radiative transitions [286]. However, they are violated if one takes motion across the magnetic field into account.…”

Section: Atomsmentioning

confidence: 94%

Atmospheres and radiating surfaces of neutron stars

Potekhin¹

2014

Phys.-Usp.

109

129

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The early 21st century witnesses a dramatic rise in the study of thermal radiation of neutron stars. Modern space telescopes have provided a wealth of valuable information which, when properly interpreted, can elucidate the physics of superdense matter in the interior of these stars. This interpretation is necessarily based on the theory of formation of neutron star thermal spectra, which, in turn, is based on plasma physics and on the understanding of radiative processes in stellar photospheres. In this paper, the current status of the theory is reviewed with particular emphasis on neutron stars with strong magnetic fields. In addition to the conventional deep (semi-infinite) atmospheres, radiative condensed surfaces of neutron stars and "thin" (finite) atmospheres are considered.

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