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arXiv · 1512.05368

Observationally constraining gravitational wave emission from short gamma-ray burst remnants

Paul D Lasky·Kostas Glampedakis
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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 magnetised neutron star. We utilise 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.

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Paul D Lasky, Kostas Glampedakis. 2016-02-22. Observationally constraining gravitational wave emission from short gamma-ray burst remnants. https://doi.org/10.1093/mnras%2Fstw435

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