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　　分類: 图书,进口原版书,科学与技术 Science & Techology ,

作者： Judith Ann Irwin著

出 版 社：

出版时间： 2007-6-1字数：版次： 1页数： 417印刷时间： 2007/06/01开本： 16开印次： 1纸张： 胶版纸I S B N ： 9780470013069包装： 平装内容简介

This text takes a close look at the radiation and particles that we receive from astronomical objects, providing a thorough understanding of what this tells us, drawing the information together using examples to illustrate the process of astrophysics. Chapters dedicated to objects showing complex processes are written in an accessible manner and pull relevant background information together to put the subject firmly into context.

The intention of the author is that the book will be a ‘tool chest’ for undergraduate astronomers wanting to know the how of astrophysics. Students will gain a thorough grasp of the key principles, ensuring that this often-difficult subject becomes more accessible.

目录

Preface

Acknowledgments

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

6 The signal transferred

7 The interaction of light with space

PART IV THE SIGNAL EMITTED

8 Continuum emission

9 Line emission

PART V THE SIGNAL DECODED

10 Forensic astronomy

Appendix A: Mathematical and geometrical relations

Appendix B: Astronomical geometry

Appendix C: The hydrogen atom

Appendix D: Scattering processes

Appendix E: Plasmas, the plasma frequency, and plasma waves

Appendix F: The Hubble relation and the expanding Universe

Appendix G: Tables and Figures

References

Index

 

 

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