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The effect of models of the interstellar media on the central mass distribution of galaxies
Charlotte Christensen, Fabio Governato, Thomas Quinn +5
We compare the central mass distribution of galaxies simulated with three different models of the interstellar medium (ISM) with increasing complexity: primordial (H+He) cooling do…
Conserved actions, maximum entropy and dark matter halos
Andrew Pontzen, Fabio Governato
We use maximum entropy arguments to derive the phase space distribution of a virialized dark matter halo. Our distribution function gives an improved representation of the end prod…
Constraints on the Shape of the Milky Way Dark Matter Halo from Jeans Equations Applied to SDSS Data
Sarah R. Loebman, Zeljko Ivezic, Thomas R. Quinn +4
We search for evidence of dark matter in the Milky Way by utilizing the stellar number density distribution and kinematics measured by the Sloan Digital Sky Survey (SDSS) to helioc…
Reproducing the Stellar Mass/Halo Mass Relation in Simulated LCDM Galaxies: Theory vs Observational Estimates
Ferah Munshi, F. Governato, A. M. Brooks +6
We examine the present-day total stellar-to-halo mass (SHM) ratio as a function of halo mass for a new sample of simulated field galaxies using fully cosmological, LCDM, high resol…
Baryons Matter: Why Luminous Satellite Galaxies Have Reduced Central Masses
Adi Zolotov, Alyson M. Brooks, Beth Willman +7
Using high resolution cosmological hydrodynamical simulations of Milky Way-massed disk galaxies, we demonstrate that supernovae feedback and tidal stripping lower the central masse…
The Halo Shape and Evolution of Polar Disc Galaxies
O. N. Snaith, B. K. Gibson, C. B. Brook +5
We examine the properties and evolution of a simulated polar disc galaxy. This galaxy is comprised of two orthogonal discs, one of which contains old stars (old stellar disc), and…
Implementing Molecular Hydrogen in Hydrodynamic Simulations of Galaxy Formation
Charlotte Christensen, Thomas Quinn, Fabio Governato +3
Motivated by the observed connection between molecular hydrogen (H2) and star formation, we present a method for tracking the non-equilibrium abundance and cooling processes of H2…
Cuspy No More: How Outflows Affect the Central Dark Matter and Baryon Distribution in Lambda CDM Galaxies
F. Governato, A. Zolotov, A. Pontzen +6
We examine the evolution of the inner dark matter (DM) and baryonic density profile of a new sample of simulated field galaxies using fully cosmological, Lambda CDM, high resolutio…