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SDSS Observations of the Milky Way vs. N-body Models: A Comparison of Stellar Distributions in the Position-Velocity-Metallicity Space
S. Loebman, R. Roskar, Z. Ivezic
The data obtained by the recent modern sky surveys enable detailed studies of the stellar distribution in the multi-dimensional space spanned by spatial coordinates, velocity and m…
Riding the Spiral Waves: Implications of Stellar Migration for the Properties of Galactic Disks
Rok Roškar, Victor P. Debattista, Thomas R. Quinn +2
Stars in disks of spiral galaxies are usually assumed to remain roughly at their birth radii. This assumption is built into decades of modelling of the evolution of stellar populat…
Clues to Radial Migration from the Properties of Outer Disks
Rok Roškar, Victor P. Debattista, Thomas R. Quinn +3
The outer disks of galaxies present a unique laboratory for studying the process of disk formation. A considerable fraction of observed disks exhibit a break in their surface brigh…
The Rotating Nuclear Star Cluster in NGC 4244
Anil C. Seth, Robert D. Blum, Nate Bastian +3
We present observations of the nuclear star cluster in the nearby edge-on spiral galaxy NGC 4244 using the Gemini Near-Infrared Integral Field Spectrograph (NIFS) with laser guide…
Radio continuum observations of the candidate supermassive black hole in the dwarf elliptical VCC128
Pieter Buyle, Sven De Rijcke, Victor P. Debattista +4
The presence of black holes (BHs) at the centers of dwarf elliptical galaxies (dEs) has been argued both theoretically and observationally. Using archival HST/WFPC2 data, we found…
Confirmation of a Kinematic Diagnostic for Face-On B/P Bulges
J. Mendez-Abreu, E. M. Corsini, Victor P. Debattista +4
We present the results of high resolution absorption-line spectroscopy of 3 face-on galaxies, NGC 98, NGC 600, and NGC 1703 with the aim of searching for box/peanut (B/P)-shaped bu…