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

James MacDonald; John Gizis

doi:10.1093/mnras/sty1888

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

Solar and Stellar Astrophysics 2018-08-01 v3

Authors: James MacDonald , John Gizis

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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.

Keywords

gaia hertzsprung-russell diagram m dwarfs stellar evolution luminosity function helium-3 mixing

Cite

@article{arxiv.1806.11454,
  title  = {An explanation for the gap in the Gaia HRD for M dwarfs},
  author = {James MacDonald and John Gizis},
  journal= {arXiv preprint arXiv:1806.11454},
  year   = {2018}
}

Comments

To appear in MNRAS

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