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Atomic processes in optically thin plasmas

Published online by Cambridge University Press:  27 October 2016

Jelle S. Kaastra ,
Liyi Gu ,
Junjie Mao ,
Missagh Mehdipour ,
Ton Raassen  and
Igone Urdampilleta
Jelle S. Kaastra
Affiliation:
SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands email: [email protected] 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: [email protected]
Junjie Mao
Affiliation:
SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands email: [email protected] 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: [email protected]
Ton Raassen
Affiliation:
SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands email: [email protected]
Igone Urdampilleta
Affiliation:
SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands email: [email protected] 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.

Keywords

Atomic dataatomic processesradiation mechanisms: generalX-rays: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , General Assembly A29A: Astronomy in Focus , August 2015 , pp. 291 - 294
Copyright
Copyright © International Astronomical Union 2016 

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