Proc. IAU volume 13, issue S334, P376-377 2017 DOI: 10.1017/s174392131700816x View full text
Marcelo Tucci Maia

Abstract: AbstractSolar twins are a special group of stars that have spectra and stellar parameters very close to the Sun. Also having mass around 1 solar mass and roughly solar chemical composition, these stars follow a similar evolutionary path to the Sun, from the zero age main sequence to the end of their lives. Additional to that, the similarity between themselves permit us to obtain high-precision differential abundance and thus, very precise atmospheric parameters that allows a reliable estimation of their ages u…

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