Bayesian calibration of the mixing length parameter $α_{ML}$ and of the helium-to-metal enrichment ratio $ΔY/ΔZ$ with open clusters: the Hyades test-bed

no code implementations • 15 Dec 2020 • E. Tognelli, M. Dell'Omodarme, G. Valle, P. G. Prada Moroni, S. Degl'Innocenti

We tested the capability of a Bayesian procedure to calibrate both the helium abundance and the mixing length parameter ($\alpha_{ML}$), using precise photometric data for main-sequence (MS) stars in a cluster with negligible reddening and well-determined distance.

Astrophysics of Galaxies Solar and Stellar Astrophysics