The thermal evolution of universe: standard model
Description
A description of the dynamical evolution of the Universe following a model based on the theory of General Relativity is made. The model admits the Cosmological principle,the principle of Equivalence and the Robertson-Walker metric (of which an original derivation is presented). In this model, the universe is considered as a perfect fluid, ideal and symmetric relatively to the number of particles and antiparticles. The thermodynamic relations deriving from these hypothesis are derived, and from them the several eras of the thermal evolution of the universe are established. Finally, the problems arising from certain specific predictions of the model are studied, and the predictions of the abundances of the elements according to nucleosynthesis and the actual behavior of the universe are analysed in detail. (author)
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
Faz-se uma descricao da evolucao dinamica do Universo segundo um modelo baseado na teoria da Relatividade Geral. O modelo admite o Principio Cosmologico, o Principio de Equivalencia e a metrica de Robertson-Walker (da qual se apresenta uma deducao original). Neste modelo, o Universo e considerado como um fluido perfeito, ideal e simetrico em relacao ao numero de particulas e antiparticulas. Determinam-se as relacoes termodinamicas que decorrem dessas hipoteses e a partir das mesmas estabelecem-se as diversas eras da evolucao termica. Finalmente, estudam-se os problemas decorrentes de certas previsoes especificas do modelo e analisam-se, em detalhe, a previsao das abundancias dos elementos de acordo com a nucleosintese e o comportamento atual do Universo. (autor)Files
11519616.pdf
Files
(2.2 MB)
| Name | Size | Download all |
|---|---|---|
|
md5:7f11eaa0f7d0bd4dbc7e99bb8f4aad65
|
2.2 MB | Preview Download |
Additional details
Additional titles
- Original title (Portuguese)
- a evolucao termica do universo: modelo padrao
Publishing Information
- Imprint Pagination
- 99 p.
- Report number
- INIS-mf--5655
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 11519616
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Resource subtype / Literary indicator
- Numerical Data, Thesis
- Descriptors DEI
- ELEMENT ABUNDANCE; EQUATIONS OF STATE; EQUIVALENCE PRINCIPLE; FLUID MECHANICS; GENERAL RELATIVITY THEORY; GRAPHS; IONIZATION; ISOLATED VALUES; MASS; METRICS; NUCLEOSYNTHESIS; SYMMETRY; THEORETICAL DATA; THERMODYNAMICS; UNIVERSE
- Descriptors DEC
- DATA; DATA FORMS; EQUATIONS; FIELD THEORIES; INFORMATION; MECHANICS; NUMERICAL DATA; QUANTITY RATIO