## An Introduction to Modern Cosmology
This fully revised edition of a bestseller takes an approach which is grounded in physics with a logical flow of chapters leading the reader from basic ideas of the expansion described by the Friedman equations to some of the more advanced ideas about the early universe. It also incorporates up-to-date results from the Cosmology is now part of the core in many degree programs. This current, clear and concise introductory text is relevant to a wide range of astronomy programs worldwide and is essential reading for undergraduates and Masters students, as well as anyone starting research in cosmology. Supplementary material, including full-colour images, updates and links for students and instructors, is available on the author’s website: http://www.roe.ac.uk/~arl/. |

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### Contents

49 | |

55 | |

The Age of the Universe | 61 |

The Density of the Universe and Dark Matter | 67 |

The Cosmic Microwave Background | 77 |

The Early Universe | 87 |

The Origin of the Light Elements | 93 |

The Inflationary Universe | 101 |

Advanced Topic 3 Neutrino Cosmology | 139 |

Advanced Topic 4 Baryogenesis | 145 |

Advanced Topic 6 Constraining cosmological models | 163 |

Bibliography | 171 |

177 | |

Constants conversion factors and symbols | xiv |

Newtonian Gravity | 21 |

The Geometry of the Universe | 29 |

The Initial Singularity | 113 |

Advanced Topic 1 General Relativistic Cosmology | 121 |

Distances and Luminosities | 127 |

Simple Cosmological Models | 37 |