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Atomic processes in optically thin plasmas

Published online by Cambridge University Press:  27 October 2016

Jelle S. Kaastra
Affiliation:
SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands email: j.kaastra@sron.nl Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, the Netherlands Department of Physics and Astronomy, Universiteit Utrecht, P.O. Box 80000, 3508 TA Utrecht, the Netherlands
Liyi Gu
Affiliation:
SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands email: j.kaastra@sron.nl
Junjie Mao
Affiliation:
SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands email: j.kaastra@sron.nl Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, the Netherlands
Missagh Mehdipour
Affiliation:
SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands email: j.kaastra@sron.nl
Ton Raassen
Affiliation:
SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands email: j.kaastra@sron.nl
Igone Urdampilleta
Affiliation:
SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands email: j.kaastra@sron.nl Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, the Netherlands
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Abstract

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The Universe contains a broad range of plasmas with quite different properties depending on distinct physical processes. In this contribution we give an overview of recent developments in modeling such plasmas with a focus on X-ray emission and absorption. Despite the fact that such plasmas have been investigated already for decades, and that overall there is a good understanding of the basic processes, there are still areas, where improvements have to be made that are important for the analysis of astrophysical plasmas. We present recent work on the update of atomic parameters in the codes that describe the emission from collisional plasmas, where older approximations are being replaced now by more accurate data. Further we discuss the development of models for photo-ionised plasmas in the context of outflows around supermassive black holes and models for charge transfer that are needed for analyzing the data from the upcoming ASTRO-H satellite.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2016 

References

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