Authors: Casey A. R.; Ruchti G.; Masseron T.; Randich S.; Gilmore G.; Lind K.; Kennedy G. M.; Koposov S. E.; Hourihane A.; Franciosini E.; Lewis J. R.; Magrini L.; Morbidelli L.; Sacco G. G.; Worley C. C.; Feltzing S.; Jeffries R. D.; Vallenari A.; Bensby T.; Bragaglia A.; Flaccomio E.; Francois P.; Korn A. J.; Lanzafame A.; Pancino E.; Recio-Blanco A.; Smiljanic R.; Carraro G.; Costado M. T.; Damiani F.; Donati P.; Frasca A.; Jofre P.; Lardo C.; de Laverny P.; Monaco L.; Prisinzano L.; Sbordone L.; Sousa S. G.; Tautvaisiene G.; Zaggia S.; Zwitter T.; Mena E. D.; Chorniy Y.; Martell S. L.; Aguirre V. S.; Miglio A.; Chiappini C.; Montalban J.; Morel T.; Valentini M.

Venue: Monthly Notices of the Royal Astronomical Society

Type: Publication

Abstract: The discovery of lithium-rich giants contradicts expectations from canonical stellar evolution. Here we report on the serendipitous discovery of 20 Li-rich giants observed during the Gaia-ESO Survey, which includes the first nine Li-rich giant stars known towards the CoRoT fields. Most of our Li-rich giants have near-solar metallicities, and stellar parameters consistent with being before the luminosity bump. This is difficult to reconcile with deep mixing models proposed to explain lithium enrichment, because these models can only operate at l... (read more)

DOI: 10.48550/arxiv.1603.03038