‘This is an excellent textbook, with a clear and pedagogical presentation, which perfectly fills a gap between other introductory books available at either much more basic or much more advanced levels. The easy-to-read style, focus on physics concepts, and self-contained derivations make the book easy to follow. It works well for advanced undergraduates or beginning graduate students, who will come away with a solid and comprehensive understanding of modern cosmology. The additions in this Second Edition, such as galaxy formation and baryon acoustic oscillations, are valuable and bring the book even more up-to-date.’ Zoltán Haiman, Columbia University
‘Barbara Ryden writes in a very clear and engaging style. This transparency has inspired many undergraduate science majors in my cosmology class to pursue additional coursework and research in astrophysics. The addition of new material on the baryonic component of the universe links cosmology to many modern research topics in astrophysics.’ Crystal Martin, University of California, Santa Barbara

‘I am delighted that a second edition of Barbara Ryden’s Introduction to Cosmology is now available. With the addition of a second chapter on structure formation, the book paints an elegant mathematical picture of the evolution of the Universe from the Big Bang to the formation of stars. Ryden does a masterful job of paring cosmology down to its most fundamental elements and presenting complex topics with exceptional clarity. The conversational style of the text, the imaginative analogies, and the emphasis placed on developing students’ conceptual understanding combine to make this book one of the best upper-level astronomy texts available.’ Christy Tremonti, University of Wisconsin, Madison

‘Barbara Ryden’s Introduction to Cosmology is now published in a second edition, following the well-received first edition of 2002 … This is a course book for physics students; its approach is quantitative and the basic equations and mathematical descriptions are extensively outlined from first principles in all the areas covered. Those equations that are not derived are quoted in such a way as to be understood … Without this, of course, cosmology cannot be usefully studied … The style of writing is efficient, while being pleasant and clear, and the explanations are on the whole of a high quality in their attention to the level of detail that is needed for a genuine understanding of the arguments. This is a highly recommendable textbook that deserves to be widely taken up in university courses in physics and astronomy.’ Peter J. Bussey, Contemporary Physics

‘… Ryden avoids oversimplification while covering all topics at about the same level, appropriate for an undergraduate course in cosmology, although the last two chapters on structural formation go somewhat beyond that. … The mixture of narrative and equations is very close to a lecture course, and the book is well written. Complicated topics such as cosmological distances and horizons are presented briefly, but correctly. The editing is much better than average … There are a few black-and-white figures throughout the text. Each chapter ends with a handful of exercises, solutions to which are available to those using the book for a course. … The main text is followed by a table of useful constants and a five-page small-print index. … this book is highly recommended …’ Phillip Helbig, The Observatory

**Book Description**

This award-winning cosmology textbook for advanced undergraduate students in physics and astronomy has been updated to include recent observational results, fuller descriptions of special and general relativity, expanded discussions of dark energy, and a new chapter on the baryonic matter that makes up stars and galaxies in the universe.

**About the Author**

Barbara Ryden received her PhD in astrophysical sciences from Princeton University, New Jersey in 1987. After postdocs at the Harvard-Smithsonian Center for Astrophysics and the Canadian Institute for Theoretical Astrophysics, she joined the astronomy faculty at the Ohio State University, where she is now a full professor. She has over twenty years of experience in teaching, at levels ranging from introductory undergraduate courses to advanced graduate seminars. She won the Chambliss Astronomical Writing Award for the first edition of Introduction to Cosmology (2002), and is the co-author, with Bradley Peterson, of Foundations of Astrophysics (2010).

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