Lenteamento Gravitacional, Grupo Local e Estrutura da Galáxia: Uma Revisão (Gravitational Lensing, Local Group and Galaxy Structure: A Review)

Nilo Serpa

Lenteamento Gravitacional, Grupo Local e Estrutura da Galáxia: Uma Revisão (Gravitational Lensing, Local Group and Galaxy Structure: A Review)

Nilo Serpa

Resumo

Resumo: O assunto das "lentes gravitacionais" ganhou expressão desde a década de 1960. Nos últimos vinte anos, com os avanços vertiginosos da tecnologia da informação e da tecnologia de exploração espacial remota, numerosas simulações e resultados observacionais neste campo produziram mudanças significativas em nossa maneira de ver o universo, tanto em grande escala quanto dentro dos limites da vizinhança galáctica acessível. No presente estudo, embora me concentre nos efeitos das lentes gravitacionais fracas e do microlenteamento no Grupo Local, farei uma breve, porém sólida, abordagem à teoria básica das lentes gravitacionais, remetendo o leitor, sempre que necessário, à literatura científica mundial.

Palavras-chave: Lentes gravitacionais, Grupo Local, lenteamento fraco.

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Abstract: The subject of "gravitational lensing" has gained expression since the 1960s. Over the last twenty years, with the dizzying advances in information technology and space remote exploration technology, numerous simulations and observational results in this field have produced significant changes in our way of seeing the universe both on a large scale and within the limits of the most accessible galactic neighborhood. In the present study, while focusing on the effects of weak gravitational lenses and microlensing in the Local Group, I will take a brief but solid approach to the basic theory of gravitational lenses, referring the reader, whenever necessary, to the world scientific literature.

Key words: Gravitational lenses, Local Group, week lensing.

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Referências

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