Three newly discovered globular clusters in NGC 6822

TL;DR

This paper reports the discovery of three new globular clusters in the dwarf galaxy NGC 6822, including their photometric properties and spatial alignment, expanding understanding of its cluster system.

Contribution

The paper introduces three newly discovered globular clusters in NGC 6822, with detailed photometry and analysis of their spatial distribution and morphology.

Findings

Two luminous, compact clusters identified.

One low luminosity, diffuse cluster identified.

Clusters align linearly with known clusters.

Abstract

We present three newly discovered globular clusters (GCs) in the Local Group dwarf irregular NGC 6822. Two are luminous and compact, while the third is a very low luminosity diffuse cluster. We report the integrated optical photometry of the clusters, drawing on archival CFHT/Megacam data. The spatial positions of the new GCs are consistent with the linear alignment of the already-known clusters. The most luminous of the new GCs is also highly elliptical, which we speculate may be due to the low tidal field in its environment.