13 papers · 1 filter
NuGrid: Toward High Precision Double-Degenerate Merger Simulations with SPH in 3D
Steven Diehl, Christopher L. Fryer, Aimee Hungerford +11
We present preliminary results from recent high-resolution double-degenerate merger simulations with the Smooth Particle Hydrodynamics (SPH) technique. We put particular emphasis o…
Why Do Only Some Galaxy Clusters Have Cool Cores?
Jack O. Burns, Eric J. Hallman, Brennan Gantner +2
Flux-limited X-ray samples indicate that about half of rich galaxy clusters have cool cores. Why do only some clusters have cool cores while others do not? In this paper, cosmologi…
The Stability of Double White Dwarf Binaries Undergoing Direct Impact Accretion
Patrick M. Motl, Juhan Frank, Joel E. Tohline +1
We present numerical simulations of dynamically unstable mass transfer in a double white dwarf binary with initial mass ratio, q = 0.4. The binary components are approximated as po…
Morphology and Evolution of Simulated and Optical Clusters: A Comparative Analysis
Nurur Rahman, Janusz Krywult, Patrick M. Motl +2
We have made a comparative study of morphological evolution in simulated DM halos and X-ray brightness distribution, and in optical clusters. Samples of simulated clusters include…
Numerical Simulations of the Onset and Stability of Dynamical Mass Transfer in Binaries
Mario C. R. D'Souza, Patrick M. Motl, Joel E. Tohline +1
Hydrodynamical simulations of semi-detached, polytropic binary stars are presented in an effort to study the onset and stability of dynamical mass transfer events. Initial, synchro…
Ruling the Universe: An Improved Method for Measuring H_0 with Galaxy Clusters
Eric J. Hallman, Jack O. Burns, Patrick M. Motl +1
Withdrawn at the current time due to errors.