SIMBAD references

2024MNRAS.535.3343M - Mon. Not. R. Astron. Soc., 535, 3343-3352 (2024/December-3)

Revised temperatures for two benchmark M-dwarfs - outliers no more.

MARTIN D.V., ARMITAGE T., DUCK A., SWAYNE M.I., RODRIGUEZ MARTINEZ R., SETHI R., STASSUN G.K., GAUDI B.S., GILL S., SEBASTIAN D. and MAXTED P.F.L.

Abstract (from CDS):

Well-characterized M-dwarfs are rare, particularly with respect to effective temperature. In this letter, we re-analyse two benchmark M-dwarfs in eclipsing binaries from Kepler/K2: KIC 1571511AB and HD 24465AB. Both have temperatures reported to be hotter or colder by $\approx 1000$ K in comparison with both models and the majority of other M-dwarfs in the literature. By modelling the secondary eclipses with both the original data and new data from TESS, we derive significantly different temperatures: $2865\pm 27$ for KIC 1571511B and $3081\pm 32$ for HD 24465B from the Transiting Exoplanet Survey Satellite (TESS) and $3114\pm 32$ K for HD 24465B from K2. These new temperatures are not outliers. Removing this discrepancy allows these M-dwarfs to be truly benchmarks. Our work also provides relief to stellar modellers. We encourage more measurements of M-dwarf effective temperatures with robust methods.

Abstract Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): techniques: photometric - techniques: spectroscopic - stars: binaries: eclipsing - stars: fundamental parameters - stars: low-mass

Errata: erratum vol. 540, p. 1378 (2025)

Simbad objects: 5

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2024MNRAS.535.3343M and select 'bookmark this link' or equivalent in the popup menu