Deterministic Files

Deterministic Catalogs: UGCA281

The version 1 catalogs were presented in Cook et al. 2019, MNRAS, 484, 4897. The version 2 catalogs were presented in Cook et al. 2022, MNRAS, and include correction for the underestimation of the contribution of the nebular emission spectra for the youngest age steps in the SED models for metallicities Z=0.008 and lower. This has affected about 15% of the recovered physical parameters for clusters in sub-solar metallicity galaxies.

The new SED fits have produced older cluster ages for about 15% of the clusters in the dwarf sample. The main revision concerns clusters that were initially assigned a best-fit age of 1 Myr. Roughly 28% of these clusters have now moved to a 3 Myr age. Another significant change is that a smaller fraction (~14%) of clusters with an initial best age of 5 Myr have now moved into the 10 Myr range, after the correct SSP models were used in the fit. However, the recovered masses and extinctions do not change significantly and remain within the mass uncertainties (about 0.2 dex).

The default or reference catalog is the one that uses Milky Way extinction, averaged aperture correction method, and Padova stellar evolutionary tracks (i.e., Row 1, Column 2, green link in the table). For further details on these catalogs, please see Adamo et al. 2017, ApJ, 841, 131.

Version 2

	Averaged Aperture Correction Method		CI-based Aperture Correction Method
	Geneva Models	Padova Models	Geneva Models	Padova Models
MW Extinction	.tab .readme	.tab .readme	.tab .readme	.tab .readme
SB Extinction	.tab .readme	.tab .readme	.tab .readme	.tab .readme
SB Diff. Extinction	.tab .readme	.tab .readme	.tab .readme	.tab .readme

Version 1

	Averaged Aperture Correction Method		CI-based Aperture Correction Method
	Geneva Models	Padova Models	Geneva Models	Padova Models
MW Extinction	.tab .readme	.tab .readme	.tab .readme	.tab .readme
SB Extinction	.tab .readme	.tab .readme	.tab .readme	.tab .readme
SB Diff. Extinction	.tab .readme	.tab .readme	.tab .readme	.tab .readme

Catalog Generation Files

File	Description
apcor_fromci_f275w_ugca281.mag	Table of aperture corrections based on the CI of the source in each band. The first column contains the aperture correction and the second column the CI of simulated sources.
apcor_fromci_f336w_ugca281.mag	Table of aperture corrections based on the CI of the source in each band. The first column contains the aperture correction and the second column the CI of simulated sources.
apcor_fromci_f438w_ugca281.mag	Table of aperture corrections based on the CI of the source in each band. The first column contains the aperture correction and the second column the CI of simulated sources.
apcor_fromci_f606w_ugca281.mag	Table of aperture corrections based on the CI of the source in each band. The first column contains the aperture correction and the second column the CI of simulated sources.
apcor_fromci_f814w_ugca281.mag	Table of aperture corrections based on the CI of the source in each band. The first column contains the aperture correction and the second column the CI of simulated sources.
automatic_catalog_avgapcor_ugca281.tab	Automatic catalog based on average aperture correction method. See the automatic catalog readme file below for details.
automatic_catalog_cibased_ugca281.tab	Automatic catalog based on CI-based method. See the automatic catalog readme file below for details.
automatic_catalog_ugca281.readme	Provides details on content of the automatic catalogs.
avg_aperture_correction_ugca281.txt	Table of averaged aperture corrections with number of sources used in the last column.
header_info_ugca281.txt	Contains list of filters, camera used, zeropoint in Vega system, total exposure time.
isolated_clusters_ugca281.coo	Coordinates of sample of isolated clusters to measure PSF and determine concentration index (CI).
isolated_stars_ugca281.coo	Coordinates of sample of isolated stars to measure PSF and determine concentration index (CI).
r2_wl_aa_ugca281.config	Configuration file to run Sextractor.

Diagnostic Plots

PLOT_APCOR_F275W_UGCA281 (PDF)	PLOT_APCOR_F336W_UGCA281 (PDF)
PLOT_APCOR_F438W_UGCA281 (PDF)	PLOT_APCOR_F606W_UGCA281 (PDF)
PLOT_APCOR_F814W_UGCA281 (PDF)	PLOT_GROWTH_CURVE_UGCA281 (PDF)
PLOT_HISTOGRAM_CI_FULLCAT_UGCA281 (PDF)	PLOT_HISTOGRAM_CI_UGCA281 (PDF)