A Survey of Star Clusters in the M31 South-West Field. UBVRI Photometry and Multi-Band Maps

TL;DR

This paper presents a comprehensive survey of star clusters in the M31 South-West field using high-resolution Subaru Suprime-Cam data, providing a catalog of 285 objects with multi-band maps, including many newly identified clusters.

Contribution

It offers the first extensive UBVRI photometry catalog of star clusters in this region, with multi-band maps and HST archive cross-references, enhancing the understanding of M31's star cluster population.

Findings

Catalog of 285 star clusters with V < 20.5, including 169 new objects.

Multi-band color maps for each cluster are provided.

77 clusters are located in HST archive frames.

Abstract

A new survey of star clusters in the South-West field of the M31 disk based on the high resolution Subaru Suprime-Cam observations is presented. The UBVRI aperture CCD photometry catalog of 285 objects (V < 20.5; 169 of them identified for the first time) is provided. Each object is supplemented with multi-band color maps presented in the electronic edition of the Astrophysical Journal Supplement. Seventy seven star cluster candidates from the catalog are located in the Hubble Space Telescope archive frames.