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Formation of a Spiral Galaxy in a Major Merger
(American Astronomical Society, 2005)
We use numerical simulations to examine the structure of merger remnants resulting from collisions of gas-rich spiral galaxies. When the gas fraction of the progenitors is small, the remnants structurally and kinematically ...
Baryons in the Warm‐Hot Intergalactic Medium
(American Astronomical Society, 2001)
Modeling Mid-Infrared Diagnostics of Obscured Quasars and Starbursts
(IOP Publishing, 2013)
We analyze the link between active galactic nuclei (AGNs) and mid-infrared flux using dust radiative transfer calculations of starbursts realized in hydrodynamical simulations. Focusing on the effects of galaxy dust, we ...
Submillimetre galaxies in a hierarchical universe: number counts, redshift distribution and implications for the IMF
(Oxford University Press (OUP), 2012)
High-redshift submillimetre galaxies (SMGs) are some of the most rapidly star-forming galaxies in the Universe. Historically, galaxy formation models have had difficulty explaining the observed number counts of SMGs. We ...
Stellar orbit evolution in close circumstellar disc encounters
(Oxford University Press (OUP), 2014)
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 circumstellar discs in 3D, focusing on disc–disc ...
Zooming in on accretion – I. The structure of halo gas
(Oxford University Press (OUP), 2016)
We study the properties of gas in and around 1012 M⊙ haloes at z = 2 using a suite of high-resolution cosmological hydrodynamic ‘zoom’ simulations. We quantify the thermal and dynamical structure of these gaseous reservoirs ...
A moving mesh unstaggered constrained transport scheme for magnetohydrodynamics
(Oxford University Press (OUP), 2016)
We present a constrained transport (CT) algorithm for solving the 3D ideal magnetohydrodynamic (MHD) equations on a moving mesh, which maintains the divergence-free condition on the magnetic field to machine-precision. Our ...
Simulated Galaxy Interactions as Probes of Merger Spectral Energy Distributions
(IOP Publishing, 2014)
We present the first systematic comparison of ultraviolet-millimeter spectral energy distributions (SEDs) of observed and simulated interacting galaxies. Our sample is drawn from the Spitzer Interacting Galaxy Survey and ...
Modeling the Dust Properties of z ~ 6 Quasars with ART2—All-Wavelength Radiative Transfer with Adaptive Refinement Tree
(IOP Publishing, 2008)
The detection of large quantities of dust in z ~ 6 quasars by infrared and radio surveys presents puzzles for the formation and evolution of dust in these early systems. Previously, Li et al. showed that luminous quasars ...
The stellar mass assembly of galaxies in the Illustris simulation: growth by mergers and the spatial distribution of accreted stars
(Oxford University Press (OUP), 2016)
We use the Illustris simulation to study the relative contributions of in situ star formation and stellar accretion to the build-up of galaxies over an unprecedentedly wide range of masses (M* = 109-1012 M⊙), galaxy types, ...