The M dwarf problem: Fe and Ti abundances in a volume-limited sample of M dwarf stars
Solar and Stellar Astrophysics
2020-04-29 v2 Astrophysics of Galaxies
Abstract
We report iron and titanium abundance measurements from high resolution spectra in a volume-limited sample of 106 M0 and M0.5 dwarf stars. The sample includes stars north of the celestial equator and closer than 29 parsecs. The results imply that there is an M dwarf problem similar to the previously known G dwarf problem, in that the fraction of low-metallicity M dwarfs is not large enough to fit simple closed-box models of Galactic chemical evolution. This volume-limited sample avoids many of the statistical uncertainties present in a previous study using a brightness-limited sample of M dwarf stars
Keywords
Cite
@article{arxiv.2003.11447,
title = {The M dwarf problem: Fe and Ti abundances in a volume-limited sample of M dwarf stars},
author = {Vincent M. Woolf and George Wallerstein},
journal= {arXiv preprint arXiv:2003.11447},
year = {2020}
}
Comments
10 pages, 3 figures. Accepted for publication in MNRAS. Corrected typos in Abstract