Dynamical Rotational Instability at Low $T/W
Astrophys.J. 550 (2001) L193-L196 Dynamical instability is shown to occur in differentially rotating polytropes with N = 3.33 and $T/|W| \gtrsim 0.14$. This instability has a strong m=1 mode, although the m=2, 3, and 4 modes also appear. Such instability may allow a centrifugally-hung core to begin...
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27-10-2000
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| Abstract | Astrophys.J. 550 (2001) L193-L196 Dynamical instability is shown to occur in differentially rotating polytropes
with N = 3.33 and $T/|W| \gtrsim 0.14$. This instability has a strong m=1 mode,
although the m=2, 3, and 4 modes also appear. Such instability may allow a
centrifugally-hung core to begin collapsing to neutron star densities on a
dynamical timescale. The gravitational radiation emitted by such unstable cores
may be detectable with advanced ground-based detectors, such as LIGO II. If the
instability occurs in a supermassive star, it may produce gravitational
radiation detectable by the space-based detector LISA. |
|---|---|
| AbstractList | Astrophys.J. 550 (2001) L193-L196 Dynamical instability is shown to occur in differentially rotating polytropes
with N = 3.33 and $T/|W| \gtrsim 0.14$. This instability has a strong m=1 mode,
although the m=2, 3, and 4 modes also appear. Such instability may allow a
centrifugally-hung core to begin collapsing to neutron star densities on a
dynamical timescale. The gravitational radiation emitted by such unstable cores
may be detectable with advanced ground-based detectors, such as LIGO II. If the
instability occurs in a supermassive star, it may produce gravitational
radiation detectable by the space-based detector LISA. |
| Author | Centrella, Joan M Brown, J. David New, Kimberly C. B Lowe, Lisa L |
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| BackLink | https://doi.org/10.1086/319634$$DView published paper (Access to full text may be restricted) https://doi.org/10.48550/arXiv.astro-ph/0010574$$DView paper in arXiv |
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| Snippet | Astrophys.J. 550 (2001) L193-L196 Dynamical instability is shown to occur in differentially rotating polytropes
with N = 3.33 and $T/|W| \gtrsim 0.14$. This... |
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| SubjectTerms | Physics - Astrophysics of Galaxies Physics - Cosmology and Nongalactic Astrophysics Physics - Earth and Planetary Astrophysics Physics - General Relativity and Quantum Cosmology Physics - High Energy Astrophysical Phenomena Physics - Instrumentation and Methods for Astrophysics Physics - Solar and Stellar Astrophysics |
| Title | Dynamical Rotational Instability at Low $T/W |
| URI | https://arxiv.org/abs/astro-ph/0010574 |
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