3 papers
astro-ph.GA2025
SED Fitting of Globular Clusters in NGC 4874: Masses and Metallicities
Kate Hartman, William E. Harris, Jinoo Kim
In most nearby galaxies, photometry of the integrated light of their globular clusters (GCs) has been obtained in only two filters, yielding just a single color index. However, NGC…
astro-ph.GA2025
Globular Clusters in the Galaxy Cluster MACS0416 at z = 0.397
Jessica M. Berkheimer, Rogier A. Windhorst, William E. Harris +27
We present a photometric analysis of globular clusters (GCs) in the massive galaxy cluster MACS J0416.1-2403 (z = 0.397) using deep JWST/NIRCam imaging from the PEARLS program. PSF…
astro-ph.SR2024
The Effect of Age and Stellar Model Choice on Globular Cluster Color-to-Metallicity Conversions
Kate Hartman, William E. Harris
The photometric colors of globular clusters (GCs) act as effective proxies for metallicity, since all normally used optical/IR color indices exhibit a nonlinear but monotonic relat…