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Delayed Star Formation in Isolated Dwarf Galaxies: HST Star Formation History of the Aquarius Dwarf Irregular
Andrew A. Cole, Daniel R. Weisz, Andrew E. Dolphin +4
We have obtained deep images of the highly isolated (d = 1 Mpc) Aquarius dwarf irregular galaxy (DDO 210) with the Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS). T…
Consequences of bursty star formation on galaxy observables at high redshifts
Alberto Domínguez, Brian Siana, Alyson M. Brooks +4
The star formation histories (SFHs) of dwarf galaxies are thought to be \emph{bursty}, with large -- order of magnitude -- changes in the star formation rate on timescales similar…
The Milky Way Tomography with SDSS. V. Mapping the Dark Matter Halo
Sarah R. Loebman, Zeljko Ivezic, Thomas R. Quinn +6
We present robust constraints from the Sloan Digital Sky Survey (SDSS) on the shape and distribution of the dark matter halo within the Milky Way (MW). Using the number density dis…
Faint dwarfs as a test of DM models: WDM vs. CDM
Fabio Governato, Daniel Weisz, Andrew Pontzen +12
We use high resolution HydroN-Body cosmological simulations to compare the assembly and evolution of a small field dwarf (stellar mass ~ 10 M, total mass 10$^{10}…
Kinematic Evolution of Simulated Star-Forming Galaxies
Susan A. Kassin, Alyson Brooks, Fabio Governato +2
Recent observations have shown that star-forming galaxies like our own Milky Way evolve kinematically into ordered thin disks over the last ~8 billion years since z=1.2, undergoing…
Effects of Inclination on Measuring Velocity Dispersion and Implications for Black Holes
Jillian Bellovary, Kelly Holley-Bockelmann, Kayhan Gültekin +5
The relation of central black hole mass and stellar spheroid velocity dispersion (the M- relation) is one of the best-known and tightest correlations linking black holes and the…
Simulating disc galaxy bulges that are consistent with observed scaling relations
C. R. Christensen, A. M. Brooks, D. B. Fisher +5
We present a detailed comparison between the photometric properties of the bulges of two simulated galaxies and those of a uniform sample of observed galaxies. This analysis shows…