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Long-Lived Double-Barred Galaxies From Pseudo-Bulges
Victor P. Debattista, Juntai Shen
A large fraction of barred galaxies host secondary bars that are embedded in their large-scale primary counterparts. These are common also in gas poor early-type barred galaxies. T…
The Binary Nucleus in VCC 128: A Candidate Supermassive Black Hole in a Dwarf Elliptical Galaxy
Victor P. Debattista, Ignacio Ferreras, Anna Pasquali +3
{\it Hubble Space Telescope} (\hst) Wide Field Planetary Camera 2 ({\it WFPC2}) images of the Virgo Cluster dwarf elliptical galaxy VCC 128 reveal an apparently double nucleus. The…
Clues to Nuclear Star Cluster Formation from Edge-on Spirals
Anil C. Seth, Julianne J. Dalcanton, Paul W. Hodge +1
We find 9 nuclear cluster candidates in a sample of 14 edge-on, late-type galaxies observed with HST/ACS. These clusters have magnitudes (M_I ~ -11) and sizes (r_eff ~ 3pc) similar…
Nuclear Star Clusters in Edge-on Galaxies
Anil C. Seth, Julianne J. Dalcanton, Paul W. Hodge +1
From observations of edge-on, late-type galaxies, we present morphological evidence that some nuclear star clusters have experienced in situ star formation. We find three nuclear c…
The N-Body Approach to Disk Galaxy Evolution
Victor P. Debattista
I review recent progress from -body simulations in our understanding of the secular evolution of isolated disk galaxies. I describe some of the recent controversies in the field…