The extravagant universe : exploding stars, dark energy and the accelerating cosmos
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書誌事項
The extravagant universe : exploding stars, dark energy and the accelerating cosmos
Princeton University Press, c2002
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注記
Includes index
内容説明・目次
内容説明
One of the world's leading astronomers, Robert Kirshner, takes readers inside a lively research team on the quest that led them to an extraordinary cosmological discovery: the expansion of the universe is accelerating under the influence of a dark energy that makes space itself expand. In addition to sharing the story of this exciting discovery, Kirshner also brings the science up-to-date in a new epilogue. He explains how the idea of an accelerating universe - once a daring interpretation of sketchy data - is now the standard assumption in cosmology today. This measurement of dark energy - a quality of space itself that causes cosmic acceleration - points to a gaping hole in our understanding of fundamental physics. In 1917, Einstein proposed the "cosmological constant" to explain a static universe. When observations proved that the universe was expanding, he cast this early form of dark energy aside. But recent observations described first-hand in this book show that the cosmological constant - or something just like it - dominates the universe's mass and energy budget and determines its fate and shape.
Warned by Einstein's blunder, and contradicted by the initial results of a competing research team, Kirshner and his colleagues were reluctant to accept their own result. But, convinced by evidence built on their hard-earned understanding of exploding stars, they announced their conclusion that the universe is accelerating in February 1998. Other lines of inquiry and parallel supernova research now support a new synthesis of a cosmos dominated by dark energy but also containing several forms of dark matter. We live in an extravagant universe with a surprising number of essential ingredients: the real universe we measure is not the simplest one we could imagine. This book invites any reader to share in the excitement of a remarkable adventure of discovery.
目次
PREFACE ix CHAPTER 1: The Big Picture 1 CHAPTER 2: Violent Agents of Cosmic Change 15 CHAPTER 3: Another Way to Explode 34 CHAPTER 4: Einstein Adds a Constant 49 CHAPTER 5: Cosmic Expansion 60 CHAPTER 6: What Time Is It? 83 CHAPTER 7: A Hot Day in Holmdel 114 CHAPTER 8: Learning to Swim 136 CHAPTER 9: Getting It First 158 CHAPTER 10: Getting It Right 194 CHAPTER 11: The Smoking Gun? 234 NOTES 263 ACKNOWLEDGMENTS 275 INDEX 277
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