Nicola J. Miller
Pierre F. L. Maxted
2021-02-25
<p>There is an urgent need for benchmark stars with effective temperature measurements that are both accurate and precise. There are few standard stars currently available with effective temperature measurements that meet the required accuracy for calibrating temperature indicators for cool dwarf stars (+/- 50K or better). We present a new method that uses high-precision measurements of eclipsing binary stars, Gaia parallaxes and multi-wavelength photometry to obtain very accurate fundamental effective temperatures. These measurements can be used to establish a set of benchmark stars. Initial results for the F7V+K0IV binary AI Phoenicis are promising: $T_1 = 6199 \pm 22$ K and $T_2 = 5094 \pm 16$ K (Miller, Maxted & Smalley, 2020). We have now applied the method to the newly identified system ASAS J051753-5406.0 (CPD-54 810) and present our preliminary results.</p>
https://doi.org/10.5281/zenodo.4562994
oai:zenodo.org:4562994
eng
Zenodo
https://zenodo.org/communities/coolstars20half
https://doi.org/10.5281/zenodo.4562993
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
CS20.5, The 20.5th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, virtually anywhere, March 2-4, 2021
Cool Stars on the main sequence
Accurate and Precise Effective Temperatures for Cool Stars
info:eu-repo/semantics/conferencePoster