HyperLEDA. III. The catalogue of extragalactic distances

TL;DR

This paper introduces an updated catalogue of 6640 redshift-independent galaxy distances from 430 studies, recalibrated onto a common scale, enabling consistent galaxy property analysis.

Contribution

The paper provides a comprehensive, recalibrated catalogue of extragalactic distances integrated into HyperLEDA, facilitating uniform galaxy measurements and analyses.

Findings

Catalogue includes 6640 distance measurements for 2335 galaxies.

Distances are recalibrated onto a common scale for consistency.

Data enables derivation of galaxy properties like magnitudes and sizes.

Abstract

We present the compilation catalogue of redshift-independent distances included in the HyperLEDA database. It is actively maintained to be up-to-date, and the current version counts 6640 distance measurements for 2335 galaxies compiled from 430 published articles. Each individual series is recalibrated onto a common distance scale based on a carefully selected set of high-quality measurements. This information together with data on HI line-width, central velocity dispersion, magnitudes, diameters, and redshift is used to derive a homogeneous distance estimate and physical properties of galaxies, such as their absolute magnitudes and intrinsic size.