An explanation for the gap in the Gaia HRD for M dwarfs

Published 29 Jun 2018 in astro-ph.SR | (1806.11454v3)

Abstract: We show that the recently discovered narrow gap in the Gaia Hertzsprung - Russell Diagram near MG =10 can be explained by standard stellar evolution models and results from a dip in the luminosity function associated with mixing of 3He during merger of envelope and core convection zones that occurs for a narrow range of masses.

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