Results 171 to 180 of about 196,671 (220)
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Physical Review, 1955
Reprinted from Phys. Rev. (2) 98, 1123-1126 (1955; Zbl 0066.22204).
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Reprinted from Phys. Rev. (2) 98, 1123-1126 (1955; Zbl 0066.22204).
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, 2012 Cosmology has been transformed by dramatic progress in high-precision observations and theoretical modelling. This book surveys key developments and open issues for graduate students and researchers. Using a relativistic geometric approach, it focuses on the general concepts and relations that underpin the standard model of the Universe.
Ellis, George F. R. +2 more
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PROBLEMS OF RELATIVISTIC COSMOLOGY
Soviet Physics Uspekhi, 1963CONTENTS I. Features of cosmological solutions of the gravitational equations 495 1. Introduction 495 2. General solution with fictitious singularity 496 3. Anisotropic solution with singularity 500 4. Quasi-isotropic solution 504 5. General conclusions concerning singularities of cosmological solutions 505 II.
E.M. Lifshitz, Isaak M. Khalatnikov
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2022
Abstract Chapter 24 introduces the field of cosmology. It starts by considering Olber’s paradox and then constructs a simple Newtonian cosmology model. It then discusses the cosmological principle and Weyl’s postulate as assumptions that go into formulating relativistic cosmology.
Ray d’Inverno, James Vickers
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Abstract Chapter 24 introduces the field of cosmology. It starts by considering Olber’s paradox and then constructs a simple Newtonian cosmology model. It then discusses the cosmological principle and Weyl’s postulate as assumptions that go into formulating relativistic cosmology.
Ray d’Inverno, James Vickers
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Newtonian Cosmology and Relativistic Theory
Astronomy Reports, 2022 This paper refutes the erroneous statements that arose in theoretical cosmology almost 90 years ago. The method accepted in the literature for deriving the local properties of the Friedmann cosmological model, using only Newton theory, without resorting ...
Novikov, I. D., Novikov Jr, I. D.
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Cosmological perturbations of a relativistic condensate
Physical Review D, 1995Based on a model of the early Universe with a relativistic Bose-Einstein condensate as the source of inflationary expansion, we calculate the gauge-invariant measure of the cosmological density perturbations caused by the zero-point fluctuations and excitations of the condensate.
, Parker, , Zhang
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Physics Today, 1967
SOME OF THE MOST exciting recent developments in physics have been in the realms of the very small and the very large. Chief among the latter was the discovery of “quasars,” which has quadrupled our depth penetration of the universe (if quasars are where most astronomers think they are), and which has also stimulated the possibly irrelevant but ...
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SOME OF THE MOST exciting recent developments in physics have been in the realms of the very small and the very large. Chief among the latter was the discovery of “quasars,” which has quadrupled our depth penetration of the universe (if quasars are where most astronomers think they are), and which has also stimulated the possibly irrelevant but ...
openaire +1 more source