Gravity-darkening exponents for MESA stellar evolution models

Abstract

In this Research Note we present new gravity-darkening exponents (${\hat{I}}^2$) for several stellar evolution models from the ZAMS up to the giant phase. The models were computed using the MESA code (version 7385) for the composition $X=0.70$ and $Z=0.02$, adopting A09 opacities and a mixing length parameter of $\hat{I}{\pm }_{\mathrm{MLT}}=1.84$. Results were calculated using the triangle strategy, for initial stellar masses of 1.0, 1.5, 2.0, 2.5, 3.0, 5.0, 7.0, 10.0, 15.0, and 20.0 $M_{\odot }$, and provide an update on previously available ${\hat{I}}^2$ values that used older models.

2 pages, 1 table. Accepted for publication in RNAAS