89 citations · 606 across the 21 of their papers we have counts for
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Empirical Corrections for Charge Transfer Inefficiency and Associated Centroid Shifts for STIS CCD Observations
Paul Goudfrooij, Ralph C. Bohlin, Jesus Maiz-Apellaniz +1
A variety of on-orbit imaging and spectroscopic observations are used to characterize the Charge Transfer Efficiency (CTE) of the Charge-Coupled Device (CCD) of the Space Telescope…
A Database of 2MASS Near-Infrared Colors of Magellanic Cloud Star Clusters
Peter M. Pessev, Paul Goudfrooij, Thomas H. Puzia +1
The (rest-frame) near-IR domain contains important stellar population diagnostics and is often used to estimate masses of galaxies at low as well as high redshifts. However, many s…
A Genuine Intermediate-Age Globular Cluster in M33
Rupali Chandar, Thomas H. Puzia, Ata Sarajedini +1
We present deep integrated-light spectroscopy of nine M33 globular clusters taken with the Hectospec instrument at the MMT Observatory. Based on our spectroscopy and previous deep…
Extremely alpha-Enriched Globular Clusters in Early-Type Galaxies: A Step towards the Dawn of Stellar Populations?
Thomas H. Puzia, Markus Kissler-Patig, Paul Goudfrooij
We compare [alpha/Fe], metallicity, and age distributions of globular clusters in elliptical, lenticular, and spiral galaxies, which we derive from Lick line index measurements. We…
Integrated-light VRI imaging photometry of globular clusters in the Magellanic clouds
Paul Goudfrooij, Diane Gilmore, Markus Kissler-Patig +1
We present accurate integrated-light photometry in Johnson/Cousins V, R, and I for a sample of 28 globular clusters in the Magellanic Clouds. The majority of the clusters in our sa…
The old globular cluster system of the dIrr galaxy NGC1427A in the Fornax cluster
Iskren Y. Georgiev, Michael Hilker, Thomas H. Puzia +5
We present a study of the old globular cluster (GC) population of the dwarf irregular galaxy NGC 1427A using multi-wavelength VLT observations in U, B, V, I, H_alpha, J, H, and Ks…