Directly Determined Linear Radii and Effective Temperatures of Giants from Long-Baseline Optical Interferometry
Abstract
A review of fundamental stellar parameters for giants as directly determined using long-baseline optical interferometry (LBI) will be presented. Special attention will be paid to the progression of precision over the years of the observables of linear radius and effective temperature, with the current state-of-the-art measures approaching sub-percent levels for hundreds of stars (and being limited primarily by the ancillary data products of distance and bolometric flux, not measured angular size). Discussion will also be presented on the diminishing meaning of these gross parameterizations of stellar atmospheres, as higher-order surface details such as limb darkening and spotting are beginning to be imaged with LBI.
- Publication:
-
Giants of Eclipse
- Pub Date:
- July 2013
- Bibcode:
- 2013giec.conf40002V