SCYON Abstract

Received on: 18 10 2022

The Panchromatic Hubble Andromeda Treasury: Triangulum Extended Region (PHATTER). IV. Star Cluster Catalog

Authors:L. Clifton Johnson 1, T. M. Wainer 1,2, E. E. TorresVillanueva 2,3, and 9 co-authors
Affiliations:(1) Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University, Evanston, USA; (2) Department of Physics and Astronomy, University of Utah, Salt Lake City, USA; (3) Department of Astronomy, University of Wisconsin-Madison, Madison, USA
Accepted by: Astrophysical Journal
URL:https://ui.adsabs.harvard.edu/abs/2022ApJ...938...81J/abstract

We construct a catalog of star clusters from Hubble Space Telescope images of the inner disk of the Triangulum Galaxy (M33) using image classifications collected by the Local Group Cluster Search, a citizen science project hosted on the Zooniverse platform. We identify 1214 star clusters within the Hubble Space Telescope imaging footprint of the Panchromatic Hubble Andromeda Treasury: Triangulum Extended Region (PHATTER) survey. Comparing this catalog to existing compilations in the literature, 68% of the clusters are newly identified. The final catalog includes multi-band aperture photometry and fits for cluster properties via integrated light SED fitting. The cluster catalog's 50% completeness limit is $\sim$1500 solar masses at an age of 100 Myr, as derived from comprehensive synthetic cluster tests.


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