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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Deflexão de fótons pelo sol no contexto da teoria de gravitação R+R2 /

Azeredo, Abel Dionízio. January 1998 (has links)
Orientador: Antonio Accioly / Resumo: Calcula-se a seção de choque para o espalhamento de fótons pelo campo gravitacional do Sol, tratado como campo externo, no contexto da teoria de gravitação R + R2. Encontra-se um valor para o ângulo de deflexão de um fóton que passa nas vizinhanças da superfície do Sol que é exatamente o mesmo que aquele fornecido pela relatividade geral. Discute-se o porquê da coincidência desses resultados. / Abstract: The cross-section for the scattering of a photon by the Sun's gravitational field, treated as an external field, is computed in the framework of R+R2 gravity. It is found a value for the deflection angle of a photon passing near to the Sun which is exactly the same as that given by general relativity. An explanation for this strange coincidence is provided. / Mestre

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