Gravitational waves from long-duration simulations of the dynamical bar instability
Abstract
Compact astrophysical objects that rotate rapidly may encounter the dynamical ``bar instability.'' The bar-like deformation induced by this rotational instability causes the object to become a potentially strong source of gravitational radiation. We have carried out a set of long-duration simulations of the bar instability with two Eulerian hydrodynamics codes. Our results indicate that the remnant of this instability is a persistent bar-like structure that emits a long-lived gravitational radiation signal.
- Publication:
-
Physical Review D
- Pub Date:
- September 2000
- DOI:
- 10.1103/PhysRevD.62.064019
- arXiv:
- arXiv:astro-ph/9911525
- Bibcode:
- 2000PhRvD..62f4019N
- Keywords:
-
- 04.30.Db;
- 04.40.Dg;
- 95.30.Lz;
- 97.60.-s;
- Wave generation and sources;
- Relativistic stars: structure stability and oscillations;
- Hydrodynamics;
- Late stages of stellar evolution;
- Astrophysics;
- General Relativity and Quantum Cosmology
- E-Print:
- 24 pages, including 10 figures