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Redistributing hot gas around galaxies: do cool clouds signal a solution to the overcooling problem?
Tobias Kaufmann, James S. Bullock, Ariyeh H. Maller +2
We present a pair of high-resolution smoothed particle hydrodynamics (SPH) simulations that explore the evolution and cooling behavior of hot gas around Milky-Way size galaxies. Th…
Forming a Large Disc Galaxy from a z<1 Major Merger
F. Governato, C. B. Brook, A. M. Brooks +8
Using high resolution SPH simulations in a fully cosmological Lambda CDM context we study the formation of a bright disk dominated galaxy that originates from a "wet" major merger…
Pairing of Supermassive Black Holes in unequal-mass galaxy mergers
Simone Callegari, Lucio Mayer, Stelios Kazantzidis +4
We examine the pairing process of supermassive black holes (SMBHs) down to scales of 20-100 pc using a set of N-body/SPH simulations of binary mergers of disk galaxies with mass ra…
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…