High resolution visual and IR images of the embedded young cluster associated with the molecular cloud and "blister" H II region GM24 are presented. The cluster...
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PublicationHigh resolution images of the embedded cluster associated with GM24.
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PublicationHigh resolution IR observations of the starburst ring in NGC 7552. One ring to rule them all?
Aims: Approximately 20% of all spiral galaxies display starburst activity in nuclear rings of a few hundred parsecs in diameter. It is our main aim to...
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PublicationHubble Space Telescope ACS Wide-Field Photometry of the Sombrero Galaxy Globular Cluster System
A detailed imaging analysis of the globular cluster (GC) system of the Sombrero galaxy (NGC 4594) has been accomplished using a six-image mosaic from the Hubble...
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PublicationHubble Space Telescope Observations of Accretion-Induced Star Formation in the Tadpole Galaxy Kiso 5639
The tadpole galaxy Kiso 5639 has a slowly rotating disk with a drop in metallicity at its star-forming head, suggesting that star formation was triggered by the...
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PublicationHubble Space Telescope-NICMOS Observations of M31'S Metal-Rich Globular Clusters and Their Surrounding Fields. I. Techniques
Astronomers are always anxious to push their observations to the limit-basing results on objects at the detection threshold, spectral features barely stronger...
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PublicationHubble Space Telescope-NICMOS Observations of M31'S Metal-Rich Globular Clusters and Their Surrounding Fields. II. Results
We have obtained HST-NICMOS observations of five of M31's most metal-rich globular clusters: G1, G170, G174, G177, and G280. For the two clusters farthest from...
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PublicationImplications for the formation of star clusters from extragalactic star formation rates
Observations indicate that young massive star clusters in spiral and dwarf galaxies follow a relation between luminosity of the brightest young cluster and the...
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PublicationInfrared High-resolution Integrated Light Spectral Analyses of M31 Globular Clusters from APOGEE
Chemical abundances are presented for 25 M31 globular clusters (GCs), based on moderately high resolution (R = 22,500) H-band integrated light (IL) spectra from...
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PublicationInitial mass function variability from the integrated light of diverse stellar systems
We present a uniform analysis of the stellar initial mass function (IMF) from integrated light spectroscopy of 15 compact stellar systems (11 globular clusters...