Gravitational Radiation from Axisymmetric Rotational Core Collapse
TLDR
In this article, a series of two-dimensional hydrodynamic simulations of the rotational collapse of a supernova core in axisymmetry were performed and it was shown that the peak amplitudes of the gravitational wave are mostly within the sensitivity range of laser interferometers such as TAMA and the first LIGO for a source at a distance of 10 kpc.Abstract:
We perform a series of two-dimensional hydrodynamic simulations of the rotational collapse of a supernova core in axisymmetry. We employ a realistic equation of state (EOS) and take into account electron capture and neutrino transport by the so-called leakage scheme. It is an important step to apply the realistic EOS coupled with microphysics to 2D simulations for computing gravitational radiation in rotational core collapse. We use the quadrupole formula to calculate the amplitudes and the waveforms of the gravitational wave assuming Newtonian gravity. With these computations, we extend the conventional category of the gravitational waveforms. Our results show that the peak amplitudes of the gravitational wave are mostly within the sensitivity range of laser interferometers such as TAMA and the first LIGO for a source at a distance of 10 kpc. Furthermore, we find that the amplitudes of the second peaks are within the detection limit of the first LIGO for the source, and first point out the importance of the detection, since it will give us information as to the angular momentum distribution of evolved massive stars.read more
Citations
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The Spin Periods and Rotational Profiles of Neutron Stars at Birth
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References
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Journal ArticleDOI
ZEUS-2D: A radiation magnetohydrodynamics code for astrophysical flows in two space dimensions. I - The hydrodynamic algorithms and tests. II - The magnetohydrodynamic algorithms and tests
James M. Stone,Michael L. Norman +1 more
Journal ArticleDOI
Presupernova Evolution of Rotating Massive Stars. I. Numerical Method and Evolution of the Internal Stellar Structure
TL;DR: In this paper, the angular momenta for the iron core and overlying material of typical presupernova stars along with their detailed chemical structure are determined, for the first time, the angular momentum distribution in typical pre-main-sequence stars.
Book
Theory of rotating stars
TL;DR: The Princeton Legacy Library as mentioned in this paper is a collection of more than 10,000 books from the distinguished backlist of Princeton University Press since its founding in 1905, including a large number of papers on rotating stars.
Journal ArticleDOI
High birth velocities of radio pulsars
Andrew Lyne,Duncan R. Lorimer +1 more
TL;DR: In this article, a mean pulsar birth velocities of 450 ± 90 km s−1 have been derived, which exceeds the escape velocity from binary systems, globular clusters and the Galaxy and so will affect our understanding of the retention of neutron stars in these systems.
Journal ArticleDOI
Relativistic simulations of rotational core collapse - II. Collapse dynamics and gravitational radiation
TL;DR: In this article, the relativistic rotational supernova core collapse in axisymmetry has been studied and the gravity radiation emitted by such an event has been computed using hydrodynamic simulations.