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Looking for Systematic Variations in the Stellar Initial Mass Function
Nate Bastian, Kevin R. Covey, Michael R. Meyer
Few topics in astronomy initiate such vigorous discussion as whether or not the initial mass function (IMF) of stars is universal, or instead sensitive to the initial conditions of…
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 evolution of stellar structures in dwarf galaxies
N. Bastian, D. R. Weisz, E. D. Skillman +8
We present a study of the variation of spatial structure of stellar populations within dwarf galaxies as a function of the population age. We use deep Hubble Space Telescope/Advanc…
The Spatial Distribution of Star Formation in the Solar Neighbourhood: Do all stars form in clusters?
E. Bressert, N. Bastian, R. Gutermuth +12
We present a global study of low mass, young stellar object (YSO) surface densities in nearby (< 500 pc) star forming regions based on a comprehensive collection of Spitzer Space T…
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…
VLT-MAD observations of the core of 30 Doradus
M. A. Campbell, C. J. Evans, A. D. Mackey +5
We present H- and Ks-band imaging of three fields at the centre of 30 Doradus in the Large Magellanic Cloud, obtained as part of the Science Demonstration programme with the Multi-…