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The Extravagant Universe

Exploding Stars, Dark Energy, and the Accelerating Cosmos

Robert P. Kirshner

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Princeton University Press img Link Publisher

Naturwissenschaften, Medizin, Informatik, Technik / Naturwissenschaften allgemein

Beschreibung

The Extravagant Universe tells the story of a remarkable adventure of scientific discovery. 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.

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Robert P. Kirshner

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Schlagwörter

Radioactive decay, White dwarf, Wavelength, Astronomer, Theory of relativity, Hubble Deep Field, Billion years, Metric expansion of space, Acceleration, Saul Perlmutter, Scientist, Physicist, Edwin Hubble, The Astrophysical Journal, Neutron, Year, Bruno Leibundgut, Cepheid variable, Brian Schmidt, Light-year, Hubble's law, Solar mass, Space telescope, Inverse-square law, Type Ia supernova, Galaxy cluster, Age of the universe, Measurement, Chronology of the universe, SN 1987A, Temperature, Observational astronomy, Apparent magnitude, Baryon, Spiral galaxy, Accelerating expansion of the universe, Neutrino, Large Magellanic Cloud, Zwicky (crater), Universe, Observable universe, Vacuum energy, Gravity, Photon, Supernova, Light curve, Quantum mechanics, Harvard–Smithsonian Center for Astrophysics, Cosmological constant, Theoretical physics, Brightness, Adam Riess, General relativity, Cosmic microwave background, Prediction, Supernova Cosmology Project, Globular cluster, Hydrogen atom, Parsec, Particle accelerator, Astronomy, Milky Way, Observatory, Hubble Space Telescope, Redshift, Uncertainty, Dark energy, Cosmic distance ladder, Quantity, Astrophysics