Titre du document

A chaotic cosmology

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Nom du Corpus

AstroConcepts

Auteur(s)
  • John D. Barrow
Affiliation(s)
  • Department of Astrophysics, Oxford University, Oxford, UK
Résumé

An anisotropic, inhomogeneous cosmological model is proposed in which the inhomogeneity is generated by shear fluctuations. This is a sufficient condition for dissipative heating by collisional neutrinos to explain the present large heat content of the universe, Sb o 108, together with its isotropy and comparative homogeneity on large scales when the photons were last scattered. The model does not require the chaotic motions to be arbitrarily truncated on large scales and isotropises early enough with high entropy to ensure the synthesis of light elements with the observed abundancies. A population of black holes which arises in a natural way can also provide the necessary ingredients for a theory of galaxy formation and morphology. The 1015-g black holes, predicted by some authors, are not necessarily expected to be a feature of chaotic cosmologies.

Langue(s) du document
Indéterminé
Année de publication
1977
Revue

Nature

Éditeur
Nature
Type de publication
journal
Type de document
research-article
Présence de XML structuré
Oui
Version de PDF
1.4
Score de qualité du texte
3.613
Nom du concept
  • Hawking effect
Catégories Science-Metrix
  • 1 - general ; 2 - general science & technology ; 3 - general science & technology
Catégories Scopus
  • 1 - General ; 2 - Multidisciplinary ; 3 - Multidisciplinary
Catégories WoS
  • 1 - science ; 2 - multidisciplinary sciences
Identifiant ISTEX
0D25B314D00C952E74520E1EB90D76DF48487C4D
ark:/67375/GT4-HJ8ZTWG6-F
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