MG14 - Talk detail |
|
Participant |
Pnigouras, Pantelis | |||||||
|
Institution |
Eberhard Karls University of Tübingen - Auf der Morgenstelle 10 - Tübingen - Baden Wurttemberg - Germany | |||||||
|
Session |
SN1-2 |
Accepted |
|
Order |
Time |
|||
|
Talk |
Oral abstract |
Title |
Saturation of the f-mode Instability in Neutron Stars | |||||
| Coauthors | ||||||||
|
Abstract |
As a result of the Chandrasekhar-Friedman-Schutz (CFS) instability, the f-mode (fundamental oscillation) in a newborn neutron star can grow and produce a significant gravitational wave signal. This star is usually the result of a core-collapse supernova explosion, but may also be the aftermath of a binary neutron star merger, where a rapidly rotating, supramassive configuration is formed, before its collapse to a black hole. The gravitational wave signal could possibly be detected by the next generation gravitational-wave detectors and, thus, provide useful information about the neutron star equation of state. However, non-linear mode coupling suppresses the growth of the f-mode and saturates it. The saturation amplitude determines the strength of the signal, as well as the evolutionary route of the star inside the so-called instability window. |
|||||||
Pdf file |
||||||||