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Type: Artigo de periódico
Title: Global textures and the formation of self-bound gravitational systems
Author: Ribeiro, ALB
Letelier, PS
Abstract: Using a Newtonian approximation we developed a quantitative criterion for the collapse of a spherical distribution of matter under an isolated texture field. In particular, we found the evolution of an overdense region is strongly determined by two parameters: the energy scale of symmetry breaking (eta) and the initial radius of the system. Applying our collapse criterion to typical galaxy scales we verified the formation of 10(11)-M. objects at z less than or similar to 9 and 10(12)-M. objects at z less than or similar to 5.
Subject: cosmology : miscellaneous
large-scale structure of Universe
Country: Inglaterra
Editor: Blackwell Science Ltd
Citation: Monthly Notices Of The Royal Astronomical Society. Blackwell Science Ltd, v. 309, n. 4, n. 817, n. 822, 1999.
Rights: aberto
Identifier DOI: 10.1046/j.1365-8711.1999.02850.x
Date Issue: 1999
Appears in Collections:Unicamp - Artigos e Outros Documentos

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