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Paper detail

Solar twins in the ELODIE archive

A large dataset of ~2800 spectra extracted from the ELODIE archive was analysed in order to find solar twins. A list of stellar spectra closely resembling the spectrum of the Sun was selected by applying a purely differential method, directly on the fluxes. As solar reference, 18 spectra of asteroids, Moon and blue sky were used. Atmospheric parameters and differential abundances of 8 chemical elements were determined for the solar twin candidates, after a careful selection of appropriate lines. The Li feature of the targets was investigated and additional information on absolute magnitude and age was gathered from the literature. HIP076114 (HD138573) is our best twin candidate, looking exactly like the Sun in all these properties.

preprint2016arXivOpen access
Dhiaa MahdiCaroline SoubiranSergi Blanco-CuaresmaLaurent Chemin
astro-ph.SR
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Dhiaa MahdiCaroline SoubiranSergi Blanco-CuaresmaLaurent Chemin

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