Einstein De Sitter Model
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Editorial
Publicado em: 2004
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2. Simulação e análise computacional das anisotropias da radiação cósmica de fundo usando o modelo de Einstein-de-Sitter
As flutuações de temperatura na radiação cósmica de fundo, em grandes escalas angulares, são de fundamental importância no estudo da formação de estruturas no universo. Este trabalho tem como principal objetivo simular mapas de anisotropia utilizando um modelo simples do Universo (modelo Einstein-de Sitter). Os mapas de anisotropia são descritos us
Publicado em: 2004
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3. Cosmological implications of old galaxies at high redshifts
Old high-z galaxies are important tools for understanding the structure formation problem and may become the key to determine the ultimate fate of the Universe. In this paper, the inferred ages of the three oldest galaxies at high redshifts reported in the literature are used to constrain the first epoch of galaxy formation and to reanalyse the high-z time s
Brazilian Journal of Physics. Publicado em: 2001-12
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4. Thermodynamics of cosmological matter creation
A type of cosmological history that includes large-scale entropy production is proposed. These cosmologies are based on reinterpretation of the matter-energy stress tensor in Einstein's equations. This modifies the usual adiabatic energy conservation laws, thereby including irreversible matter creation. This creation corresponds to an irreversible energy flo