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Clusters of Galaxies: Beyond the Thermal View

  • Book
  • © 2008

Overview

Editors:
  1. Jelle Kaastra

    1. Space Research Organisation Netherlands (SRON), Utrecht, The Netherlands

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  • Focuses on the warm-hot intergalactic medium and non-thermal aspects of clusters

  • Contains a tutorial review about these topics

  • Takes an approach from observational, theoretical, and numerical modeling points of view

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Table of contents (19 chapters)

  1. Front Matter

    Pages 1-6
    Download chapter PDF

  2. Clusters of Galaxies: Beyond the Thermal View

    • J. S. Kaastra, A. M. Bykov, S. Schindler, J. A. M. Bleeker, S. Borgani, A. Diaferio et al.
    Pages 1-6

  3. Clusters of Galaxies: Setting the Stage

    • A. Diaferio, S. Schindler, K. Dolag
    Pages 7-24

  4. FUV and X-Ray Absorption in the Warm-Hot Intergalactic Medium

    • P. Richter, F. B. S. Paerels, J. S. Kaastra
    Pages 25-49

  5. Soft X-Ray and Extreme Ultraviolet Excess Emission from Clusters of Galaxies

    • F. Durret, J. S. Kaastra, J. Nevalainen, T. Ohashi, N. Werner
    Pages 51-70

  6. Nonthermal Phenomena in Clusters of Galaxies

    • Y. Rephaeli, J. Nevalainen, T. Ohashi, A. M. Bykov
    Pages 71-92

  7. Observations of Extended Radio Emission in Clusters

    • C. Ferrari, F. Govoni, S. Schindler, A. M. Bykov, Y. Rephaeli
    Pages 93-118

  8. Cosmological Shock Waves

    • A. M. Bykov, K. Dolag, F. Durret
    Pages 119-140

  9. Equilibration Processes in the Warm-Hot Intergalactic Medium

    • A. M. Bykov, F. B. S. Paerels, V. Petrosian
    Pages 141-153

  10. Thermal Radiation Processes

    • J. S. Kaastra, F. B. S. Paerels, F. Durret, S. Schindler, P. Richter
    Pages 155-190

  11. Nonthermal Radiation Mechanisms

    • Vahé Petrosian, Andrei Bykov, Yoel Rephaeli
    Pages 191-206

  12. Particle Acceleration Mechanisms

    • V. Petrosian, A. M. Bykov
    Pages 207-227

  13. Simulation Techniques for Cosmological Simulations

    • K. Dolag, S. Borgani, S. Schindler, A. Diaferio, A. M. Bykov
    Pages 229-268

  14. Thermodynamical Properties of the ICM from Hydrodynamical Simulations

    • S. Borgani, A. Diaferio, K. Dolag, S. Schindler
    Pages 269-293

  15. Numerical Simulations of the Warm-Hot Intergalactic Medium

    • Serena Bertone, Joop Schaye, Klaus Dolag
    Pages 295-310

  16. Non-Thermal Processes in Cosmological Simulations

    • K. Dolag, A. M. Bykov, A. Diaferio
    Pages 311-335

  17. Observations of Metals in the Intra-Cluster Medium

    • N. Werner, F. Durret, T. Ohashi, S. Schindler, R. P. C. Wiersma
    Pages 337-362

  18. Metal Enrichment Processes

    • S. Schindler, A. Diaferio
    Pages 363-377

  19. The Chemical Enrichment of the ICM from Hydrodynamical Simulations

    • S. Borgani, D. Fabjan, L. Tornatore, S. Schindler, K. Dolag, A. Diaferio
    Pages 379-403

  20. Future Instrumentation for the Study of the Warm-Hot Intergalactic Medium

    • Frits Paerels, Jelle Kaastra, Takaya Ohashi, Philipp Richter, Andrei Bykov, Jukka Nevalainen
    Pages 405-418
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Keywords

About this book

The existence of soft excess emission originating from clusters of galaxies, de ned as em- sion detected below 1 keV in excess over the usual thermal emission from hot intracluster gas (hereafter the ICM) has been claimed since 1996. Soft excesses are particularly - portant to detect because they may (at least partly) be due to thermal emission from the Warm-Hot Intergalactic Medium, where as much as half of the baryons of the Universe could be. They are therefore of fundamental cosmological importance. Soft excess emission has been observed (and has also given rise to controversy) in a number of clusters, mainly raising the following questions: (1) Do clusters really show a soft excess? (2) If so, from what spatial region(s) of the cluster does the soft excess or- inate? (3) Is this excess emission thermal, originating from warm-hot intergalactic gas (at 6 temperatures of?10 K), or non-thermal, in which case several emission mechanisms have been proposed. Interestingly, some of the non-thermal mechanisms suggested to account for soft excess emission can also explain the hard X-ray emission detected in some clusters, for example by RXTE and BeppoSAX (also see Petrosian et al. 2008—Chap. 10, this issue; Rephaeli et al. 2008—Chap. 5, this issue).

Editors and Affiliations

  • Space Research Organisation Netherlands (SRON), Utrecht, The Netherlands

    Jelle Kaastra

About the editor

sronl.nl.~kaastra/ 

Jelle Kaastra studied astrophysics at Utrecht University. He obtained his Ph.D. in astronomy in 1985 with a thesis on Solar flares. After that he joined the Netherlands Institute for Space Research SRON, first in Leiden, and from 1994 in Utrecht, where he currently is employed as a senior scientist. He is an expert on high-resolution X-ray spectroscopy and currently works on a variety of topics in this field, including clusters of galaxies.

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