Homogenized effective temperatures from stellar libraries

TL;DR

This paper estimates and compares the external errors of stellar effective temperatures across different libraries, proposing a method to homogenize these temperatures by weighted averaging based on error estimates.

Contribution

It introduces a systematic approach to quantify external errors and homogenize stellar effective temperatures from multiple libraries using weighted averaging.

Findings

External errors are consistent with published data.

Homogenization reduces discrepancies among stellar temperature measurements.

Weighted averaging improves temperature data reliability.

Abstract

External errors of effective temperatures of stars for selected libraries are estimated from data intercomparisons. It is found that the obtained errors are mainly in a good correspondence with the published data. The results may be used to homogenize the effective temperatures by averaging the data (with the weights inversely proportional to the squared errors) from independent sources.