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Morphological evolution of disk galaxies in clusters
Chiara Mastropietro, Ben Moore, Lucio Mayer +3
The recent discovery of hidden non-axysimmetric and disk-like structures in bright Virgo dwarf elliptical and lenticular galaxies (dE/dSph/dS0) indicates that they may have late-ty…
Fate of Supermassive Black Holes and Evolution of the M(BH)-sigma Relation in Merging Galaxies: The Effect of Gaseous Dissipation
Stelios Kazantzidis, Lucio Mayer, Monica Colpi +6
We analyze the effect of dissipation on the orbital evolution of supermassive black holes (SMBHs) using high-resolution self-consistent gasdynamical simulations of binary equal- an…
The counter-streaming instability in dwarf ellipticals with off-center nuclei
Sven De Rijcke, Victor P. Debattista
n many nucleated dwarf elliptical galaxies (dE,N's), the nucleus is offset by a significant fraction of the scale radius with respect to the center of the outer isophotes. Using a…
Bulges or Bars from Secular Evolution?
Victor P. Debattista, C. Marcella Carollo, Lucio Mayer +1
We use high resolution collisionless -body simulations to study the secular evolution of disk galaxies and in particular the final properties of disks that suffer a bar and perh…
On position angle errors in the Tremaine-Weinberg method
Victor P. Debattista
I show that Tremaine-Weinberg (TW) measurements of bar pattern speeds are sensitive to errors in the position angle of the disc, PA_disc. I use an -body experiment to measure th…
Fabry-Perot Absorption-Line Spectroscopy of NGC 7079: Kinematics and Bar Pattern Speed
Victor P. Debattista, T. B. Williams
We present Fabry-Perot absorption-line spectroscopy of the SB0 galaxy NGC 7079. This is the first use of Fabry-Perot techniques to measure the two-dimensional stellar kinematics of…