Astrophysics
Decoding the Cosmos
(Sprache: Englisch)
Astrophysics: Decoding the Cosmos is an accessible introduction to the key principles and theories underlying astrophysics.
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Astrophysics: Decoding the Cosmos is an accessible introduction to the key principles and theories underlying astrophysics.
Klappentext zu „Astrophysics “
Astrophysics: Decoding the Cosmos is an accessible introduction to the key principles and theories underlying the subject. It takes a close look at the radiation and particles that we receive from astronomical objects and provides a thorough understanding of what these information-bearers tell us. Chapters are dedicated to complex physical processes described in an accessible manner and pull together relevant background material that , with many examples, places the physics firmly into an astronomical context.* an accessible student-friendly guide to the key theories and principles of astrophysics* includes numerous illustrations, examples and end-of-chapter problems to enhance student understanding* focuses on the 'how' of astronomy- how densities, temperatures, masses and energies are actually determined* a 'tool chest' for undergraduate astronomers providing key background information to the subject* describes the physics first, then moves on to provide examples of the theory in practiceThis book will be invaluable for students taking courses in astrophysics, physics and astronomy and will also be a useful reference for graduate students looking for an overview of the subject.
Inhaltsverzeichnis zu „Astrophysics “
PrefaceAcknowledgments
Introduction
Appendix: dimensions, units and equations
PART I THE SIGNAL OBSERVED
1 Defining the signal
1.1 The power of light - luminosity and spectral power
1.2 Light through a surface - flux and flux density
1.3 The brightness of light - intensity and specific intensity
1.4 Light from all angles - energy density and mean intensity
1.5 How light pushes - radiation pressure
1.6 The human perception of light - magnitudes
1.7 Light aligned - polarization
Problems
2 Measuring the signal
2.1 Spectral filters and the panchromatic universe
2.2 Catching the signal - the telescope
2.3 The Corrupted signal - the atmosphere
2.4 Processing the signal
2.5 Analysing the signal
2.6 Visualizing the signal
Problems
Appendix: refraction in the Earth's atmosphere
PART II MATTER AND RADIATION ESSENTIALS
3 Matter essentials
3.1 The Big Bang
3.2 Dark and light matter
3.3 Abundances of the elements
3.4 The gaseous universe
3.5 The dusty Universe
3.6 Cosmic rays
Problems
Appendix: the electron/proton ratio in cosmic rays
4 Radiation essentials
4.1 Black body radiation
4.2 Grey bodies and planetary temperatures
Problems
Appendix: derivation of the Planck function
4.A.1 The statistical weight
4.A.2 The mean energy per state
4.A.3 The specific energy density and specific intensity
PART III THE SIGNAL PERTURBED
5 The interaction of light with matter
5.1 The photon redirected - scattering
5.2 The photon lost - absorption
5.3 The wavefront redirected - refraction
5.4 Quantifying opacity and transparency
5.5 The opacity of dust - extinction
Problems
6 The signal transferred
6.1 Types of energy transfer
6.2 The equation of transfer
6.3 Solutions to the equation of transfer
6.4 Implications of the LTE solution
Problems
7 The interaction of light with space
7.1 Space and time
7.2 Redshifts and
... mehr
blueshifts
7.3 Gravitational refraction
7.4 Time variability and source size
Problems
PART IV THE SIGNAL EMITTED
8 Continuum emission
8.1 Characteristics of continuum emission - thermal and non-thermal
8.2 Bremsstrahlung (free-free) emission
8.3 Free-bound (recombination) emission
8.4 Two-photon emission
8.5 Synchrotron (and cyclotron) radiation
8.6 Inverse Compton radiation
Problems
9 Line emission
9.1 The richness of the spectrum - radio waves to gamma rays
9.2 The line strengths, thermalization, and the critical gas density
9.3 Line broadening
9.4 Probing physical conditions via electronic transitions
9.5 Probing physical conditions via molecular transitions
Problems
PART V THE SIGNAL DECODED
10 Forensic astronomy
10.1 Complex spectra
10.2 Case studies - the active, the young, and the old
10.3 The messenger and the message
Problems
Appendix A: Mathematical and geometrical relations
A.1 Taylor series
A.2 Binomial expansion
A.3 Exponential expansion
A.4 Convolution
A.5 Properties of the ellipse
Appendix B: Astronomical geometry
B.1 One-dimensional and two-dimensional angles
B.2 Solid angle and the spherical coordinate system
Appendix C: The hydrogen atom
C.1 The hydrogen spectrum and principal quantum number
C.2 Quantum numbers, degeneracy, and statistical weight
C.3 Fine structure and the Zeeman effect
C.4 The l 21 cm line of neutral hydrogen
Appendix D: Scattering processes
D.1 Elastic, or coherent scattering
D.2 Inelastic scattering - Compton scattering from free electrons
D.3 Scattering by dust
Appendix E: Plasmas, the plasma frequency, and plasma waves
Appendix F: The Hubble relation and the expanding Universe
F.1 Kinematics of the Universe
F.2 Dynamics of the Universe
F.3 Kinematics, dynamics and high redshifts
Appendix G: Tables and Figures
References
Index
7.3 Gravitational refraction
7.4 Time variability and source size
Problems
PART IV THE SIGNAL EMITTED
8 Continuum emission
8.1 Characteristics of continuum emission - thermal and non-thermal
8.2 Bremsstrahlung (free-free) emission
8.3 Free-bound (recombination) emission
8.4 Two-photon emission
8.5 Synchrotron (and cyclotron) radiation
8.6 Inverse Compton radiation
Problems
9 Line emission
9.1 The richness of the spectrum - radio waves to gamma rays
9.2 The line strengths, thermalization, and the critical gas density
9.3 Line broadening
9.4 Probing physical conditions via electronic transitions
9.5 Probing physical conditions via molecular transitions
Problems
PART V THE SIGNAL DECODED
10 Forensic astronomy
10.1 Complex spectra
10.2 Case studies - the active, the young, and the old
10.3 The messenger and the message
Problems
Appendix A: Mathematical and geometrical relations
A.1 Taylor series
A.2 Binomial expansion
A.3 Exponential expansion
A.4 Convolution
A.5 Properties of the ellipse
Appendix B: Astronomical geometry
B.1 One-dimensional and two-dimensional angles
B.2 Solid angle and the spherical coordinate system
Appendix C: The hydrogen atom
C.1 The hydrogen spectrum and principal quantum number
C.2 Quantum numbers, degeneracy, and statistical weight
C.3 Fine structure and the Zeeman effect
C.4 The l 21 cm line of neutral hydrogen
Appendix D: Scattering processes
D.1 Elastic, or coherent scattering
D.2 Inelastic scattering - Compton scattering from free electrons
D.3 Scattering by dust
Appendix E: Plasmas, the plasma frequency, and plasma waves
Appendix F: The Hubble relation and the expanding Universe
F.1 Kinematics of the Universe
F.2 Dynamics of the Universe
F.3 Kinematics, dynamics and high redshifts
Appendix G: Tables and Figures
References
Index
... weniger
Autoren-Porträt von Judith A. Irwin
Dr Judith Ann Irwin, Department of Physics, Queen s University, Kingston Ontario, Canada
Bibliographische Angaben
- Autor: Judith A. Irwin
- 2007, 1. Auflage, 440 Seiten, Maße: 24,1 cm, Kartoniert (TB), Englisch
- Verlag: Wiley & Sons
- ISBN-10: 0470013060
- ISBN-13: 9780470013069
Sprache:
Englisch
Rezension zu „Astrophysics “
"...für jeden Bücherschrank - auch für Studenten und des anspruchvollen Amateurastronomen"Der Sternenbote621/2008-4
Pressezitat
"This is a very easy to read textbook although full of physical insight " ( Reviews , June 2008) "Good upper level physics students graduate students will cherish this book..." ( CHOICE , January 2008)
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