The Sky Tonight

September 18, 2015

Stellar atmosphere can be used to predict the composition of rocky exoplanets
Porto, Portugal (SPX) Sep 18, 2015
In two recently published articles researchers from Instituto de Astrofisica e Ciencias do Espaco (IA3) show that the ratio of some heavy elements in a star, like Magnesium (Mg), Silicon (Si) and Iron (Fe), have a crucial influence in the composition of rocky exoplanets. In several previously published articles, it is suggested that the ratio of Fe, Mg and Si in the Sun is similar to that of the Earth, Venus, Mars and some meteorites. Thus, in the Solar System, the relative abundance of these elem ... read more

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