Cambridge Astrophysics Series, Cambridge: Cambridge University Press, 1988.

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X-ray Emission from Clusters of Galaxies

Craig L. Sarazin


Department of Astronomy, University of Virginia


Table of Contents

PREFACE

INTRODUCTION

OPTICAL OBSERVATIONS
Catalogs
Redshifts
Richness-the number of galaxies in a cluster
Luminosity function of galaxies
Morphological classification of clusters
Velocity distribution of galaxies
Spatial distribution of galaxies
Cluster masses-the missing mass problem
Dynamics of galaxies in clusters
Two-body relaxation
Violent relaxation
Ellipsoidal clusters
Dynamical friction
Galactic content of clusters
cD galaxies
Proportion of spiral, S0, and elliptical galaxies
Extensions of clustering
Poor clusters
Superclusters and voids

RADIO OBSERVATIONS
General radio properties
Correlations between X-ray and radio emission
Head-tail and other distorted radio structures
Cluster radio haloes
Cosmic microwave diminution (Sunyaev-Zel'dovich effect)
Faraday rotation
21 cm line observations of clusters

X-RAY OBSERVATIONS
Detections and identifications
X-ray luminosities and luminosity functions
X-ray spectra
Continuum features in the spectrum
Line features-the 7 keV iron line
Lower energy lines
The spatial distribution of X-ray emission
X-ray centers, sizes, and masses
X-ray images of clusters and the morphology of the intracluster gas
Individual clusters
Coma
Perseus
M87/Virgo
A1367
X-ray-optical correlations
Poor clusters
High redshift clusters and X-ray cluster evolution

THEORETICAL PROGRESS
Emission mechanisms
Inverse Compton emission
Individual stellar X-ray sources
Thermal bremsstrahlung from intracluster gas
Ionization and X-ray emission from hot, diffuse plasma
Ionization equilibrium
X-ray emission
Resulting spectra
Heating and cooling of the intracluster gas
Cooling
Infall and compressional heating
Heating by ejection from galaxies
Heating by galaxy motions
Heating by relativistic electrons
Transport processes
Mean free paths and equilibration time-scales
Thermal conduction
Effects of the magnetic field
Viscosity
Diffusion and settling of heavy ions
Convection and mixing
Distribution of the intracluster gas-hydrostatic models
Isothermal distributions
Adiabatic and polytropic distributions
More complicated distributions
Empirical gas distributions derived by surface brightness deconvolution
Total masses and mass distributions in clusters-the hydrostatic method
Chemically inhomogeneous equilibrium models
Wind models for the intracluster gas
Cooling flows and accretion by cDs
Cooling flows
Accretion by central galaxies
Thermal instability and optical filamentation
Accretion-driven star formation
Cooling flow models with star formation
Evolution of cooling flows and active galaxies
X-ray emission from individual galaxies
Massive haloes around M87 and other central galaxies
Other models for M87 and other central galaxies
X-ray emission from noncentral cluster galaxies
Stripping of gas from galaxies in clusters
The origin and evolution of the intracluster medium
Infall models
Ejection from galaxies

PROSPECTS FOR THE FUTURE AND AXAF

REFERENCES

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