Isochrone fitting in the Gaia era. III. Distances, ages and masses from UniDAM using Gaia eDR3 data

TL;DR

This paper uses Gaia eDR3 data combined with spectrophotometric information to estimate distances, ages, and masses for over 6 million stars, enhancing stellar parameter determination.

Contribution

It applies the UniDAM tool to Gaia eDR3 data, providing a large-scale, integrated approach for stellar parameter estimation.

Findings

Estimated parameters for over 6 million stars

Improved accuracy in stellar distances, ages, and masses

Demonstrated effectiveness of combining spectrophotometry with Gaia data

Abstract

We present estimates of distances, ages and masses for over 6 million stars. These estimates are derived from the combination of spectrophotometric data and Gaia eDR3 parallaxes. For that, we used the previously published Unified tool to estimate Distances, Ages, and Masses (UniDAM).