Bibliographic Details
| Title: |
Revised temperatures for two benchmark M-dwarfs – outliers no more. |
| Authors: |
Martin, David V1,2 (AUTHOR), Armitage, Tayt2,3 (AUTHOR), Duck, Alison2 (AUTHOR), Swayne, Matthew I4,5 (AUTHOR), Martínez, Romy Rodríguez2,6 (AUTHOR), Sethi, Ritika7,8 (AUTHOR), Stassun, G Keivan9 (AUTHOR), Gaudi, B Scott2 (AUTHOR), Gill, Sam10 (AUTHOR), Sebastian, Daniel11 (AUTHOR), Maxted, Pierre F L5 (AUTHOR) |
| Source: |
Monthly Notices of the Royal Astronomical Society. Dec2024, Vol. 535 Issue 4, p3343-3352. 10p. |
| Subject Terms: |
*ECLIPSING binaries, *LOW mass stars, *TEMPERATURE |
| Abstract: |
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 FROM AUTHOR] |
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| Database: |
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