Eleven Exoplanet Host Star Angular Diameters from the CHARA Array

TL;DR

This paper reports direct measurements of angular diameters for 11 exoplanet host stars using the CHARA Array, leading to estimates of their radii, temperatures, masses, and ages, primarily focusing on evolved stars.

Contribution

First direct angular diameter measurements for a sample of exoplanet host stars, enabling precise stellar parameter determinations.

Findings

Measured angular diameters for 11 stars

Derived stellar radii and temperatures

Estimated masses and ages of the stars

Abstract

We directly measured the angular diameters for 11 exoplanet host stars using Georgia State University's CHARA Array interferometer and calculated their linear radii and effective temperatures. The sample tends towards evolving or evolved stars and includes one dwarf, four subgiants, and six giants. We then estimated masses and ages for the stars using our effective temperatures combined with metallicity measurements from the literature.