The Unified Cluster Catalogue: towards a comprehensive and homogeneous data base of stellar clusters

Author:

Perren Gabriel I12ORCID,Pera María S23,Navone Hugo D23,Vázquez Rubén A14

Affiliation:

1. Instituto de Astrofísica de La Plata (IALP), CONICET-UNLP, 1900 La Plata, Argentina

2. Facultad de Ciencias Exactas, Ingeniería y Agrimensura (UNR), 2000 Rosario, Argentina

3. Instituto de Física de Rosario (IFIR), CONICET-UNR, 2000 Rosario, Argentina

4. Facultad de Ciencias Astronómicas y Geofísicas (UNLP), 1900 La Plata, Argentina

Abstract

ABSTRACT We introduce the Unified Cluster Catalogue, the largest catalogue of stellar clusters currently listing nearly 14 000 objects. In this initial release, it exclusively contains Milky Way open clusters, with plans to include other objects in future updates. Each cluster is processed using a novel probability membership algorithm, which incorporates the coordinates, parallax, proper motions, and their associated uncertainties for each star into the probability assignment process. We employ Gaia Data Release 3 (DR3) up to a G magnitude of 20, resulting in the identification of over a million probable members. The catalogue is accompanied by a publicly accessible website designed to simplify the search and data exploration of stellar clusters. The website can be accessed at https://ucc.ar.

Funder

University of Rosario

CONICET

UNLP

European Space Agency

Masaryk University

NASA

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

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