Genesis of the Big Bang
The authors of this volume have been intimately connected with the conception of the Big Bang model since 1947. Following the late George Gamow's ideas in 1942 and more particularly in 1946 that the early universe was an appropriate site for the synthesis of the elements, they became deeply involved in the question of cosmic nucleosynthesis and particularly the synthesis of the light elements. In the course of this work they developed a general relativistic model of the expanding universe with physics folded in, which led in a progressive, logical sequence to our prediction of the existence of a present cosmic background radiation some seventeen years before the observation of such radiation was reported by Penzias and Wilson. In addition, they carried out with James W. Follin, Jr., a detailed study of the physics of what was then considered to be the very early universe, starting a few seconds after the Big Bang, which still provides a methodology for studies of light element nucleosynthesis. Because of their involvement, they bring a personal perspective to the subject. They present a picture of what is now believed to be the state of knowledge about the evolution of the expanding universe and delineate the story of the development of the Big Bang model as they have seen and lived it from their own unique vantage point.
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anisotropy anthropic principle antimatter antiparticles appears astronomers baryon basic behavior Big Bang model billion black holes blackbody radiation calculations called centimeters Cepheid variables clusters of galaxies CMBR COBE cosmic microwave background cosmological constant cosmological model cosmologists cosmos decoupling density of matter developed distance distribution early universe Einstein electrons elementary particles emitted energy entropy equation equilibrium evolved expanding universe expansion rate figure finite fluctuations George Gamow gravitational helium Hoyle Hubble parameter hydrogen inflation inflationary paradigms isotropy kelvin light elements light-element magnetic mass matter and radiation measurements microwave background radiation Milky neutrinos neutrons neutrons and protons nuclear nuclei nucleosynthesis objects observed paper Penzias and Wilson physics Planck plasma prediction present primordial protons quantum ratio reactions recent redshift relative abundances relativistic result satellite scientists space spectrum standard Big Bang stars Steady State model stellar structure suggested temperature and density theoretical theory tion velocity of light wavelength
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