Atomic Physics of X-Ray Emissions

Details Atomic Physics of X-Ray Emissions Atomic Physics of X-Ray Emissions

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusm.p41a..05d&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #P41A-05

Physics

Atomic Physics

7554 X Rays, Gamma Rays, And Neutrinos

Scientific paper

Atomic Physics is an essential element in the interpretation of observations of X-rays,in the identification of the mechanisms that produce X-rays and in the prediction of the spectra. The spectra serve as powerful diagnostics of the origin of the X-rays and the nature of the astrophysical environments in which the sources are embedded. Atomic processes that lead to the emission of X-rays will be discussed with particular attention to charge transfer in collisions of highly-stripped ions with neutral material. Following electron capture radiative cascade occurs involving many transitions in which X-rays and extreme ultraviolet radiation are emitted. The charge transfer cross sections depend on velocity, on the charge state of the ions and on the target, and the transition rates depend on the atomic system formed by elcetron capture. These data can be used to separate out the different contributions to the soft X-ray background.

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