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Synthetic Galaxy Images and Spectra from the Illustris Simulation
Paul Torrey, Gregory F. Snyder, Mark Vogelsberger +10
We present our methods for generating a catalog of 7,000 synthetic images and 40,000 integrated spectra of redshift z = 0 galaxies from the Illustris Simulation. The mock data prod…
The Formation of Massive, Compact Galaxies at z=2 in the Illustris Simulation
Sarah Wellons, Paul Torrey, Chung-Pei Ma +13
Massive, quiescent galaxies at high redshift have been found to be considerably more compact than galaxies of similar mass in the local universe. How these compact galaxies formed…
The colors of satellite galaxies in the Illustris Simulation
Laura V. Sales, Mark Vogelsberger, Shy Genel +8
Observationally, the fraction of blue satellite galaxies decreases steeply with host halo mass, and their radial distribution around central galaxies is significantly shallower in…
The impact of feedback on cosmological gas accretion
Dylan Nelson, Shy Genel, Mark Vogelsberger +4
We investigate how the way galaxies acquire their gas across cosmic time in cosmological hydrodynamic simulations is modified by a comprehensive physical model for baryonic feedbac…
Stellar orbit evolution in close circumstellar disc encounters
Diego J. Muñoz, Kaitlin M. Kratter, Mark Vogelsberger +2
The formation and early evolution of circumstellar discs often occurs within dense, newborn stellar clusters. For the first time, we apply the moving-mesh code AREPO, to circumstel…
Numerical Convergence in Smoothed Particle Hydrodynamics
Qirong Zhu, Lars Hernquist, Yuexing Li
We study the convergence properties of smoothed particle hydrodynamics (SPH) using numerical tests and simple analytic considerations. Our analysis shows that formal numerical conv…