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arXiv · 1011.6387

Gravitational Wave Emission from the Single-Degenerate Channel of Type Ia Supernovae

David Falta·Robert T. Fisher·Gaurav Khanna
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Abstract

The thermonuclear explosion of a C/O white dwarf as a Type Ia supernova (SN Ia) generates a kinetic energy comparable to that released by a massive star during a SN II event. Current observations and theoretical models have established that SNe Ia are asymmetric, and therefore--like SNe II--potential sources of gravitational wave (GW) radiation. We perform the first detailed calculations of the GW emission for a SN Ia of any type within the single-degenerate channel. The gravitationally-confined detonation (GCD) mechanism predicts a strongly-polarized GW burst in the frequency band around 1 Hz. Third-generation spaceborne GW observatories currently in planning may be able to detect this predicted signal from SNe Ia at distances up to 1 Mpc. If observable, GWs may offer a direct probe into the first few seconds of the SNe Ia detonation.

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David Falta, Robert T. Fisher, Gaurav Khanna. 2011-05-28. Gravitational Wave Emission from the Single-Degenerate Channel of Type Ia Supernovae. https://doi.org/10.1103/physrevlett.106.201103

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