Results 101 to 110 of about 3,204 (220)

The natural science of cosmology

, 2014
The network of cosmological tests is tight enough now to show that the relativistic Big Bang cosmology is a good approximation to what happened as the universe expanded and cooled through light element production and evolved to the present.
Peebles, P. James E.
core   +1 more source

Dust, Time, and Symmetry [PDF]

, 2004
Two symmetry arguments are discussed, each purporting to show that there is no more room in general relativistic cosmology than in Minkowski spacetime for a preferred division of spacetime into instants of time.
Belot, Gordon
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On the Perturbed Friedmann Equations in Newtonian Gauge

Universe
Based on Newtonian mechanics, in this article, we present a heuristic derivation of the Friedmann equations, providing an intuitive foundation for these fundamental relations in cosmology.
Jaume de Haro, Emilio Elizalde, Supriya Pan   +2 more
doaj   +1 more source

The kinematic cosmic dipole beyond Ellis and Baldwin

Astronomy & Astrophysics
The cosmic dipole anomaly–currently detected at a significance exceeding 5σ in several independent surveys poses a significant challenge to the standard model of cosmology.
Bonnefous Albert
doaj   +1 more source

The Relevance of Irrelevance: Absolute Objects and the Jones-Geroch Dust Velocity Counterexample, with a Note on Spinors [PDF]

, 2005
James L. Anderson analyzed the conceptual novelty of Einstein's theory of gravity as its lack of ``absolute objects.'' Michael Friedman's related concept of absolute objects has been criticized by Roger Jones and Robert Geroch for implausibly admitting ...
Pitts, J. Brian, J. Brian Pitts
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Quantum Big-Bounce as a phenomenology of RQM in the Mini-superspace

Physics Letters B
We investigate the emergence of a quantum Big-Bounce in the context of an isotropic Universe, filled by a self-interacting scalar field, which plays the role of a physical clock. The bouncing cosmology is the result of a scattering process, driven by the
Simone Lo Franco, Giovanni Montani
doaj   +1 more source

The Birth of the Universe

, 2015
Presented on April 7, 2015 at 6:00 p.m. in the Clough Undergraduate Learning Commons, room 144.George Efstathiou is the Professor of Astrophysics at the University of Cambridge.
Efstathiou, George
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Heavy neutrino balls and the supermassive dark object at the Galactic center

, 1999
Includes bibliographical references.Massive neutrinos were the first proposed, and still remain the most natural, particle candidate for the dark matter.
Munyaneza, Faustin
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The clustering and X-ray properties of faint galaxies [PDF]

, 1994
The clustering properties of faint (23 ≤ B ≤ 27) galaxies were investigated, with the aim of obtaining information about their redshift distribution, N(z), and therefore about the processes of galaxy evolution causing the steep rise in the galaxy number ...
Roche, Nathan, Roche, N
core  

Cosmology and relativistic astrophysics

, 1983
SIGLEDEGerman
Astronomische Gesellschaft, Hamburg (Germany, F.R.)
core