Results 81 to 90 of about 380,547 (242)

The Truncated Lognormal Distribution as a Luminosity Function for SWIFT-BAT Gamma-Ray Bursts

open access: yesGalaxies, 2016
The determination of the luminosity function (LF) in Gamma ray bursts (GRBs) depends on the adopted cosmology, each one characterized by its corresponding luminosity distance.
Lorenzo Zaninetti
doaj   +1 more source

Brane cosmology from observational surveys and its comparison with standard FRW cosmology

open access: yes, 2013
Several dark energy models on the brane are investigated. They are compared with corresponding theories in the frame of 4d Friedmann-Robertson-Walker cosmology.
Astashenok, A. V.   +4 more
core   +1 more source

Cosmology at the millennium [PDF]

open access: yesReviews of Modern Physics, 1999
One hundred years ago we did not know how stars generate energy, the age of the Universe was thought to be only millions of years, and our Milky Way galaxy was the only galaxy known. Today, we know that we live in an evolving and expanding Universe comprising billions of galaxies, all held together by dark matter.
Michael S. Turner   +2 more
openaire   +3 more sources

Stochastic cosmology, theories of perturbations and Lifshitz gravity

open access: yes, 2015
We review some works of E M Lifshitz connected with gravity and cosmology and also some later works, connected with his ideas. The main topics of this review are the stochastic cosmology of an anisotropic universe and of an isotropic universe with the ...
Kamenshchik, A. Yu., Khalatnikov, I. M.
core   +1 more source

Plaints soient les Indiens du cosmos

open access: yesRevue d'anthropologie des connaissances, 2018
While since the late 1960s, Americans draw in the Native American culture hoping to give a sense of their life back in a materialist society, the NASA space programme reflects a cosmology and an ethos injuring Zuni cosmology.
Jane M. Young
doaj   +1 more source

Cosmological analogies for geophysical flows, Lagrangians, and new analogue gravity systems

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
Formal analogies between the ordinary differential equations describing geophysical flows and Friedmann cosmology are developed. As a result, one obtains Lagrangian and Hamiltonian formulations of these equations, while laboratory experiments aimed at ...
Valerio Faraoni, Sonia Jose
doaj   +1 more source

E10 Cosmology

open access: yes, 2005
We construct simple exact solutions to the E10/K(E10) coset model by exploiting its integrability. Using the known correspondences with the bosonic sectors of maximal supergravity theories, these exact solutions translate into exact cosmological ...
Kleinschmidt, Axel, Nicolai, Hermann
core   +1 more source

Quantum Cosmology

open access: yes, 2008
We give an introduction into quantum cosmology with emphasis on its conceptual parts. After a general motivation we review the formalism of canonical quantum gravity on which discussions of quantum cosmology are usually based.
Kiefer, Claus, Sandhoefer, Barbara
core   +1 more source

Centenary of Alexander Friedmann’s Prediction of Universe Expansion and the Prospects of Modern Cosmology

open access: yesUniverse
In this Editorial to the Special Issue “The Friedmann Cosmology: A Century Later”, we consider an outstanding character of Friedmann’s prediction of Universe expansion, which laid the foundation of modern cosmology.
Galina L. Klimchitskaya   +2 more
doaj   +1 more source

Cosmological quasiparticles and the cosmological collider

open access: yesPhysical Review D
31 pages, 11 ...
Jay Hubisz   +3 more
openaire   +2 more sources

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