PHANGS-HST catalogs for $\sim$100,000 star clusters and compact associations in 38 galaxies: I. Observed properties

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Bibliographic Details
Main Authors:	Maschmann, Daniel, Lee, Janice C., Thilker, David A., Whitmore, Bradley C., Deger, Sinan, Boquien, Mederic, Chandar, Rupali, Dale, Daniel A., Wofford, Aida, Hannon, Stephen, Larson, Kirsten L., Leroy, Adam K., Schinnerer, Eva, Rosolowsky, Erik W., Ubeda, Leonardo, Barnes, Ashley, Emsellem, Eric, Grasha, Kathryn, Groves, Brent, Kim, Hwihyun, Klessen, Ralf S., Kreckel, Kathryn, Levy, Rebecca C., Pinna, Francesca, Rodriguez, Jimena, Tian, Qiushi, Williams, Thomas G.
Format:	Preprint
Published:	2024
Subjects:	Astrophysics of Galaxies
Online Access:	Acceder al recurso
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_version_	1866913257602678784
author	Maschmann, Daniel Lee, Janice C. Thilker, David A. Whitmore, Bradley C. Deger, Sinan Boquien, Mederic Chandar, Rupali Dale, Daniel A. Wofford, Aida Hannon, Stephen Larson, Kirsten L. Leroy, Adam K. Schinnerer, Eva Rosolowsky, Erik W. Ubeda, Leonardo Barnes, Ashley Emsellem, Eric Grasha, Kathryn Groves, Brent Kim, Hwihyun Klessen, Ralf S. Kreckel, Kathryn Levy, Rebecca C. Pinna, Francesca Rodriguez, Jimena Tian, Qiushi Williams, Thomas G.
author_facet	Maschmann, Daniel Lee, Janice C. Thilker, David A. Whitmore, Bradley C. Deger, Sinan Boquien, Mederic Chandar, Rupali Dale, Daniel A. Wofford, Aida Hannon, Stephen Larson, Kirsten L. Leroy, Adam K. Schinnerer, Eva Rosolowsky, Erik W. Ubeda, Leonardo Barnes, Ashley Emsellem, Eric Grasha, Kathryn Groves, Brent Kim, Hwihyun Klessen, Ralf S. Kreckel, Kathryn Levy, Rebecca C. Pinna, Francesca Rodriguez, Jimena Tian, Qiushi Williams, Thomas G.
contents	We present the largest catalog to-date of star clusters and compact associations in nearby galaxies. We have performed a V-band-selected census of clusters across the 38 spiral galaxies of the PHANGS-HST Treasury Survey, and measured integrated, aperture-corrected NUV-U-B-V-I photometry. This work has resulted in uniform catalogs that contain $\sim$20,000 clusters and compact associations which have passed human inspection and morphological classification, and a larger sample of $\sim$100,000 classified by neural network models. Here, we report on the observed properties of these samples, and demonstrate that tremendous insight can be gained from just the observed properties of clusters, even in the absence of their transformation into physical quantities. In particular, we show the utility of the UBVI color-color diagram, and the three principal features revealed by the PHANGS-HST cluster sample: the young cluster locus, the middle-age plume, and the old globular cluster clump. We present an atlas of maps of the 2D spatial distribution of clusters and compact associations in the context of the molecular clouds from PHANGS-ALMA. We explore new ways of understanding this large dataset in a multi-scale context by bringing together once-separate techniques for the characterization of clusters (color-color diagrams and spatial distributions) and their parent galaxies (galaxy morphology and location relative to the galaxy main sequence). A companion paper presents the physical properties: ages, masses, and dust reddenings derived using improved spectral energy distribution (SED) fitting techniques.
format	Preprint
id	arxiv_https___arxiv_org_abs_2403_04901
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	PHANGS-HST catalogs for $\sim$100,000 star clusters and compact associations in 38 galaxies: I. Observed properties Maschmann, Daniel Lee, Janice C. Thilker, David A. Whitmore, Bradley C. Deger, Sinan Boquien, Mederic Chandar, Rupali Dale, Daniel A. Wofford, Aida Hannon, Stephen Larson, Kirsten L. Leroy, Adam K. Schinnerer, Eva Rosolowsky, Erik W. Ubeda, Leonardo Barnes, Ashley Emsellem, Eric Grasha, Kathryn Groves, Brent Kim, Hwihyun Klessen, Ralf S. Kreckel, Kathryn Levy, Rebecca C. Pinna, Francesca Rodriguez, Jimena Tian, Qiushi Williams, Thomas G. Astrophysics of Galaxies We present the largest catalog to-date of star clusters and compact associations in nearby galaxies. We have performed a V-band-selected census of clusters across the 38 spiral galaxies of the PHANGS-HST Treasury Survey, and measured integrated, aperture-corrected NUV-U-B-V-I photometry. This work has resulted in uniform catalogs that contain $\sim$20,000 clusters and compact associations which have passed human inspection and morphological classification, and a larger sample of $\sim$100,000 classified by neural network models. Here, we report on the observed properties of these samples, and demonstrate that tremendous insight can be gained from just the observed properties of clusters, even in the absence of their transformation into physical quantities. In particular, we show the utility of the UBVI color-color diagram, and the three principal features revealed by the PHANGS-HST cluster sample: the young cluster locus, the middle-age plume, and the old globular cluster clump. We present an atlas of maps of the 2D spatial distribution of clusters and compact associations in the context of the molecular clouds from PHANGS-ALMA. We explore new ways of understanding this large dataset in a multi-scale context by bringing together once-separate techniques for the characterization of clusters (color-color diagrams and spatial distributions) and their parent galaxies (galaxy morphology and location relative to the galaxy main sequence). A companion paper presents the physical properties: ages, masses, and dust reddenings derived using improved spectral energy distribution (SED) fitting techniques.
title	PHANGS-HST catalogs for $\sim$100,000 star clusters and compact associations in 38 galaxies: I. Observed properties
topic	Astrophysics of Galaxies
url	https://arxiv.org/abs/2403.04901