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Stability and collapse of rapidly rotating, supramassive neutron stars: 3D simulations in general relativity
Masaru Shibata, Thomas W. Baumgarte, Stuart L. Shapiro
We perform 3D numerical simulations in full general relativity to study the stability of rapidly rotating, supramassive neutron stars at the mass-shedding limit to dynamical collap…
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}…
On the Maximum Mass of Differentially Rotating Neutron Stars
Thomas W. Baumgarte, Stuart L. Shapiro, Masaru Shibata
We construct relativistic equilibrium models of differentially rotating neutron stars and show that they can support significantly more mass than their nonrotating or uniformly rot…
Brief Comments on ``The Shapiro Conjecture, Prompt or Delayed Collapse ?'' by Miller, Suen and Tobias
Stuart L. Shapiro
Recent numerical simulations address a conjecture by Shapiro that when two neutron stars collide head-on from rest at infinity, sufficient thermal pressure may be generated to supp…
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…