LISC Catalog of Open Clusters.III. 83 Newly found Galactic disk open clusters using Gaia EDR3
Huanbin Chi, Feng Wang, Zhongmu Li

TL;DR
This paper utilizes Gaia EDR3 data and advanced machine learning to identify 83 new open clusters in the Milky Way, expanding the known catalog and highlighting the incompleteness of current surveys.
Contribution
It extends the HDBSCAN method with parallel computing to discover new open clusters in Gaia EDR3 data, significantly increasing the catalog of known clusters.
Findings
Identified 83 new open clusters in Gaia EDR3 data.
Expanded the catalog of Galactic open clusters.
Highlighted the incompleteness of current cluster surveys.
Abstract
As groups of coeval stars born from the same molecular cloud, an Open cluster (OC) is an ideal laboratory for studying the structure and dynamical evolution of the Milky Way. The release of High-Precision Gaia Early Data Release 3 (Gaia EDR3) and modern machine-learning methods offer unprecedented opportunities to identify OCs. In this study, we extended conventional HDBSCAN (e-HDBSCAN) for searching for new OCs in Gaia EDR3. A pipeline was developed based on the parallel computing technique to blindly search for open clusters from Gaia EDR3 within Galactic latitudes 25 . As a result, we obtained 3787 star clusters, of which 83 new OCs were reported after cross-match and visual inspection. At the same time, the main star cluster parameters are estimated by colour-magnitude diagram fitting. The study significantly increases the sample size and physical…
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Astronomical Observations and Instrumentation
