Exoplanet host stars are rich in alpha-elements

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Exoplanet host stars are rich in alpha-elements

Post by Lazarus on 31st May 2012, 5:09 pm

Overabundance of α-elements in exoplanet host stars

Investigation of the metallicity of exoplanet host stars for elements other than iron. Seems to be a particularly strong correlation for magnesium.
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Re: Exoplanet host stars are rich in alpha-elements

Post by Lazarus on 30th September 2012, 7:23 pm

Now adding the Kepler candidates as well as the HARPS sample. The results suggest that early planet formation could happen in the galaxy's thick disc where the chemical conditions (alpha-enhancement) would be more favourable.

Exploring the α-enhancement of metal-poor planet-hosting stars. The Kepler + HARPS samples
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