Search | SciELO

O objetivo deste artigo é contar um pouco da história da cosmologia nesses últimos 100 anos, descrever de forma sucinta seus maiores avanços e apresentar suas principais questões que ainda estão em aberto nesse início de século.

Empty The goal of this article is to present a brief history of Cosmology in the past 100 years, reviewing its main progress and highlighting its main open questions in the beginning of this century.

Recent observations indicate that the expansion of the Universe is accelerating. This suggests the existence of some kind of exotic matter with negative pressure. The simplest possibility is a cosmological constant but there are alternatives, as for instance an evolving scalar field. In this paper we explore constraints from lensing statistics and high-z type Ia Supernovae on some of these alternatives.

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

No documents were found for your search