Self-consistent approach to x-ray reflection from rough surfaces

The most puzzling observations concerning the LISM (distance < 100 pc) can be explained by a fast adiabatically cooled gas in the cavity of an old superbubble. The ultrasoft X-ray background and contributions to the C- and M-bands are due to the continuum emission of delayed recombination [1]. In contrast to collisional ionization equilibrium (CIE) models, but consistent with recent observations [2], our model predicts a lack of emission lines and a low emissivity in the EUV range. In the figure below we compare the emissivities resulting from CIE at T = 106 K and those from our model at T = 4.2 × 104 K. The basic feature of our model is a thermally self-consistent approach of the time-dependent evolution.

Download Full-text

Diffusion, Winds and X-Rays from Magnetic Stars

Highlights of Astronomy ◽

10.1017/s1539299600018426 ◽

1998 ◽

Vol 11 (2) ◽

pp. 674-675

Author(s):

J. Babel

Keyword(s):

X Rays ◽

X Ray ◽

Self Consistent ◽

Magnetic Stars ◽

Consistent Approach

AbstractWe propose a self-consistent approach of the CP star phenomenon and try to solve simultaneously the problems of abundance spots, wind and X-ray emission from these stars. We also discuss the periodic X-ray emission from the 07V star θ1 Orionis C and its link with Bp stars.

Download Full-text

On the optical theorem applicability using a self-consistent wave approximation model for the grazing-incidence small-angle X-ray scattering from rough surfaces

Acta Crystallographica Section A Foundations of Crystallography ◽

10.1107/s0108767312017448 ◽

2012 ◽

Vol 68 (4) ◽

pp. 505-512 ◽

Cited By ~ 3

Author(s):

F. N. Chukhovskii

Keyword(s):

Small Angle ◽

Rough Surfaces ◽

Grazing Incidence ◽

Optical Theorem ◽

Approximation Model ◽

X Ray ◽

Wave Approximation ◽

X Ray Scattering ◽

Self Consistent ◽

Ray Scattering

Download Full-text

Residual Stress in α-Brass during Annealing

Materials Science Forum ◽

10.4028/www.scientific.net/msf.571-572.69 ◽

2008 ◽

Vol 571-572 ◽

pp. 69-73 ◽

Cited By ~ 1

Author(s):

Roman Wawszczak ◽

Andrzej Baczmanski ◽

Krzysztof Wierzbanowski ◽

Sebastian Wroński ◽

Chedly Braham ◽

...

Keyword(s):

Residual Stress ◽

Diffraction Peak ◽

X Ray Diffraction ◽

X Ray ◽

First Order ◽

Fitting Procedure ◽

Self Consistent ◽

Different Temperatures ◽

Consistent Approach ◽

Anisotropic Diffraction

The evolution of residual stress and crystallographic texture during thermal treatment was studied using X-ray diffraction. Polycrystalline α-brass samples were examined after cold rolling and afterwards after annealing at different temperatures in the range of 50 0C - 450 0C. Additionally, the width of the diffraction peak was measured in order to estimate the variation of the dislocation density. The interpretation of experimental data was based on a fitting procedure for which the anisotropic diffraction elastic constants calculated by a self-consistent approach were used. As the result of analysis, the values of the first order and second order stresses were determined in each sample.

Download Full-text

Self-Consistent Field Calculations of X-Ray Emission Spectra of Surface Adsorbates and Polymers

Journal de Physique IV (Proceedings) ◽

10.1051/jp4/1997076 ◽

1997 ◽

Vol 7 (C2) ◽

pp. C2-515-C2-516

Author(s):

H. Agren ◽

L. G.M. Pettersson ◽

V. Carravetta ◽

Y. Luo ◽

L. Yang ◽

...

Keyword(s):

Emission Spectra ◽

X Ray ◽

Consistent Field ◽

Self Consistent ◽

Surface Adsorbates ◽

Self Consistent Field

Download Full-text

Stellar Flares: Observations and Theory

International Astronomical Union Colloquium ◽

10.1017/s0252921100153783 ◽

1989 ◽

Vol 104 (2) ◽

pp. 49-52

Author(s):

Suzanne L. Hawley

Keyword(s):

Scaling Law ◽

Dynamic Scaling ◽

X Ray ◽

Temperature Distributions ◽

Photometric And Spectroscopic Observations ◽

Stellar Flares ◽

Consistent Model ◽

Self Consistent ◽

Flare Model ◽

Large Flare

AbstractPhotometric and spectroscopic observations of a very large flare on AD Leo are presented. A self consistent model of a flare corona, transition region and chromosphere is developed; in particular the chromospheric temperature distributions resulting from X-ray and EUV irradiation by coronae of various temperatures are determined. The predicted line fluxes in Hγ are compared to the observed line fluxes to find the coronal temperature as a function of time during the flare. This run of temperature with time is then compared with the predictions of an independent theoretical flare model based on a dynamic scaling law (see paper by Fisher and Hawley, these proceedings).

Download Full-text