Thermal radiation processes

Abstract

We discuss the different physical processes that are important to understand the thermal X-ray emission and absorption spectra of the diffuse gas in clusters of galaxies and the warm-hot intergalactic medium. The ionisation balance, line and continuum emission and absorption properties are reviewed and several practical examples are given that illustrate the most important diagnostic features in the X-ray spectra.

37 pages, 16 figures, accepted for publication in Space Science Reviews, special issue "Clusters of galaxies: beyond the thermal view", Editor J.S. Kaastra, Chapter 9; work done by an international team at the International Space Science Institute (ISSI), Bern, organised by J.S. Kaastra, A.M. Bykov, S. Schindler & J.A.M. Bleeker

References in corpus (12)

• On the Absorption of X-rays in the Interstellar Medium
• Collisional Plasma Models with APEC/APED: Emission Line Diagnostics of Hydrogen-like and Helium-like Ions
• Spatially resolved X-ray spectroscopy of cooling clusters of galaxies
• Complex resonance absorption structure in the X-ray spectrum of IRAS13349+2438
• Metal and molecule cooling in simulations of structure formation
• X-rays from solar system objects
• Metal and molecule cooling in simulations of structure formation
• Slow Temperature Equilibration Behind the Shock Front of SN 1006
• FUV and X-ray absorption in the Warm-Hot Intergalactic Medium
• X-ray Absorption Spectroscopy of the Multi-phase Interstellar Medium: Oxygen and Neon Abundances
• Nonthermal radiation mechanisms
• Resonant scattering of X-rays by the warm intergalactic medium

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