Cosmology Part I: The Unperturbed Universe Hiranya V. Peiris 1, ∗ 1 Institute of Astronomy, University of Cambridge, Cambridge, CB1 3AX, U.K. Classes M.W.F. 11 am, MR9 Office Obs 28, Old Observatory Building, Institute of Astronomy, Madingley Road (Tel: 337533). Course Website http://camd05.ast.cam.ac.uk/Cosmology/ Introductory Reading: 1. Liddle, A. An Introduction to Modern Cosmology. Wiley (2003) Complementary Reading 1. Dodelson, S. Modern Cosmology. Academic Press (2003) * 2. Carroll, S.M. Spacetime and Geometry. Addison-Wesley (2004) * 3. Liddle, A.R. and Lyth, D.H. Cosmological Inflation and Large-Scale Structure. Cambridge (2000) * 4. Kolb, E.W. and Turner, M.S. The Early Universe. Addison-Wesley (1990) * 5. Weinberg, S. Gravitation and Cosmology. Wiley (1972) * 6. Peacock, J.A. Cosmological Physics. Cambridge (2000) 7. Mukhanov, V. Physical Foundations of Cosmology. Cambridge (2005) Books denoted with a * are particularly recommended for this course. Acknowledgements This course is distilled from a variety of excellent presentations of the subject in courses and textbooks I have encountered over the years. It is, of course, a topic that can be treated with a wide range of sophistication and difficulty. I have elected to aim it at an accessible level with more emphasis on developing physical intuition rather than on mathematical principles. In terms of textbooks, it most closely parallels the treatments found in Dodelson and Carroll, which are my current personal favourites, and borrows with gratitude from course notes by (in no particular order) Paul Steinhardt, Paul Shellard, Daniel Baumann, and Anthony Lasenby. I thank Anthony Challinor for reading through a huge sheaf of rough notes for this course and providing helpful comments. I am supported by STFC and the European Commission. Errata Any errata contained in the following notes are solely my own. Reports of any typos or unclear explanations in the notes will be gratefully received at the email address below. The notes are evolving, and the most up-to-date version at any given time will be found on the website above. * Electronic address: hiranya@ast.cam.ac.uk