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Gas Accretion in the M32 Nucleus: Past & Present
Anil C. Seth
Using adaptive optics assisted Gemini/NIFS data, I study the present and past gas accretion in the central 3" of the M32 nucleus. From changes in the spectral slope and CO line dep…
GLIMPSE-CO1: the most massive intermediate-age stellar cluster in the Galaxy
Ben Davies, Nate Bastian, Mark Gieles +3
The stellar cluster GLIMPSE-C01 is a dense stellar system located in the Galactic Plane. Though often referred to in the literature as an old globular cluster traversing the Galact…
The ACS Nearby Galaxy Survey Treasury IX. Constraining asymptotic giant branch evolution with old metal-poor galaxies
Leo Girardi, Benjamin F. Williams, Karoline M. Gilbert +10
In an attempt to constrain evolutionary models of the asymptotic giant branch (AGB) phase at the limit of low masses and low metallicities, we have examined the luminosity function…
The ACS Nearby Galaxy Survey Treasury VI. The Ancient Star Forming disk of NGC 404
Benjamin F. Williams, Julianne J. Dalcanton, Karoline M. Gilbert +5
We present HST/WFPC2 observations across the disk of the nearby isolated dwarf S0 galaxy NGC 404, which hosts an extended gas disk. Our deepest field reaches the red clump and main…
The NGC 404 Nucleus: Star Cluster and Possible Intermediate Mass Black Hole
Anil C. Seth, Michele Cappellari, Nadine Neumayer +8
We examine the nuclear morphology, kinematics, and stellar populations in nearby S0 galaxy NGC 404 using a combination of adaptive optics assisted near-IR integral-field spectrosco…
The ACS Nearby Galaxy Survey Treasury V. Radial Star Formation History of NGC 300
Stephanie M. Gogarten, Julianne J. Dalcanton, Benjamin F. Williams +13
We present new Hubble Space Telescope (HST) observations of NGC 300 taken as part of the ACS Nearby Galaxy Survey Treasury (ANGST). Individual stars are resolved in these images do…