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This concise textbook, the first volume in the Ohio State Astrophysics Series, covers all aspects of the interstellar and intergalactic medium for graduate students and advanced undergraduates. This series aims to impart the essential knowledge on a topic that every astrophysics graduate student should know, without going into encyclopedic depth. This text includes a full discussion of the circumgalactic medium, which bridges the space between the interstellar and intergalactic gas, and the hot intracluster gas that fills clusters of galaxies. Its breadth of coverage is innovative, as most current textbooks treat the interstellar medium in isolation. The authors emphasise an order-of-magnitude understanding of the physical processes that heat and cool the low-density gas in the universe, as well as the processes of ionization, recombination, and molecule formation. Problems at the end of each chapter are supplemented by online projects, data sets and other resources.
Author(s): Barbara Ryden, Richard Pogge
Series: The Ohio State Astrophysics Series
Publisher: Cambridge University Press
Year: 2021
Language: English
Pages: 261
City: Cambridge
Cover
Half-title
Title page
Copyright information
Dedication
Contents
Preface
1 Introduction
1.1 History of Interstellar Studies
1.2 Approaching Equilibrium
1.3 Heating and Cooling in the ISM
1.4 Stable and Unstable Equilibrium
Exercises
2 Cold Neutral Medium
2.1 Equation of Radiative Transfer
2.2 Absorbers and Emitters
2.3 Building Absorption Lines
2.4 Curve of Growth
Exercises
3 Warm Neutral Medium
3.1 Twenty-One Centimeter Emission and Absorption
3.2 Radiative Transfer of Line Emission
3.3 Exciting Hyperfine Energy Levels
Exercises
4 Warm Ionized Medium and Ionized Nebulae
4.1 Photoionization and Radiative Recombination
4.2 Strömgren Spheres
4.3 Heating and Cooling in H ii Regions
4.4 Temperature and Density Diagnostics
4.5 Dynamics of H ii Regions
Exercises
5 Hot Ionized Medium
5.1 Shocking Information
5.2 Supernova Remnants
5.3 Ionizing, Heating, and Cooling
5.4 Observing the Hot Ionized Medium
Exercises
6 Interstellar Dust
6.1 Observed Properties of Dust
6.2 Optical Properties of Grains
6.3 Composition, Shape, and Size of Grains
6.4 Heating and Cooling Grains
6.5 Making and Breaking Grains
Exercises
7 Molecular Clouds
7.1 Interstellar CO
7.2 From CO to H[sub(2)]
7.3 Heating and Cooling Molecular Gas
7.4 Making and Breaking Molecules
Exercises
8 Circumgalactic and Intracluster Gas
8.1 Circumgalactic Medium: Our Galaxy
8.2 Circumgalactic Medium: Other Galaxies
8.3 Intracluster Medium
Exercises
9 Diffuse Intergalactic Medium
9.1 Gunn–Peterson Effect
9.2 Recombination
9.3 Reionization
9.4 Lyman Alpha Forest
Exercises
10 Warm-Hot Intergalactic Medium
10.1 Simulations
10.2 Observations
Exercises
Bibliography, References, and Figure Credits
Constants and Units
Index
