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12 papers · 2 filters
Formation of Galactic Bulges
Nickolay Y. Gnedin, Michael L. Norman, Jeremiah P. Ostriker
We use cosmological hydrodynamic simulations to investigate formation of galactic bulges within the framework of hierarchical clustering in a representative CDM cosmological model.…
Numerical Models of Binary Neutron Star System Mergers. I.: Numerical Methods and Equilibrium Data for Newtonian Models
F. Douglas Swesty, Edward Y. M. Wang, Alan C. Calder
The numerical modeling of binary neutron star mergers has become a subject of much interest in recent years. While a full and accurate model of this phenomenon would require the ev…
R-Mode Oscillations in Rotating Magnetic Neutron Stars
Luciano Rezzolla, Frederick K. Lamb, Stuart L. Shapiro
We show that r-mode oscillations distort the magnetic fields of neutron stars and that their occurrence is likely to be limited by this interaction. If the field is gtrsim 10^{16}…
Evolution of Rotating Supermassive Stars to the Onset of Collapse
Thomas W. Baumgarte, Stuart L. Shapiro
We launch a fully relativistic study of the formation of supermassive black holes via the collapse of supermassive stars. Here we initiate our investigation by analyzing the secula…
Luminosity versus Rotation in a Supermassive Star
Thomas W. Baumgarte, Stuart L. Shapiro
We determine the effect of rotation on the luminosity of supermassive stars. We apply the Roche model to calculate analytically the emitted radiation from a uniformly rotating, rad…
Hydrodynamical Simulations of the Lyman Alpha Forest: Model Comparisons
M. E. Machacek, G. L. Bryan, A. Meiksin +4
We investigate the properties of the Lyman alpha forest as predicted by numerical simulations for a range of currently viable cosmological models. This is done in order to understa…