Observationally constraining gravitational wave emission from short gamma-ray burst remnants
Abstract
Observations of short gamma-ray bursts indicate ongoing energy injection following the prompt emission, with the most likely candidate being the birth of a rapidly rotating, highly magnetized neutron star. We utilize X-ray observations of the burst remnant to constrain properties of the nascent neutron star, including its magnetic field-induced ellipticity and the saturation amplitude of various oscillation modes. Moreover, we derive strict upper limits on the gravitational wave emission from these objects by looking only at the X-ray light curve, showing the burst remnants are unlikely to be detected in the near future using ground-based gravitational wave interferometers, such as Advanced LIGO.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- May 2016
- DOI:
- 10.1093/mnras/stw435
- arXiv:
- arXiv:1512.05368
- Bibcode:
- 2016MNRAS.458.1660L
- Keywords:
-
- gravitational waves;
- gamma-ray burst: general;
- stars: neutron;
- Astrophysics - High Energy Astrophysical Phenomena;
- General Relativity and Quantum Cosmology
- E-Print:
- Accepted for publication in MNRAS