NS-NS Merger (Mag. Braking)

Summary Table

Category	Progenitor	Type	Energy Mechanism	Emission Mechanism	Counterparts									References	Brief Comments
					LF Radio	HF Radio	Microwave	Terahertz	Optical/IR	X-rays	Gamma-rays	Gravitational Waves	Neutrinos
Merger	NS-NS	Single	Mag. braking	--	Yes	Yes	--	--	Kilonova	Afterglow	sGRB if jet aligned	Yes	--	http://adsabs.harvard.edu/abs/2013PASJ...65L..12T

Definitions: LF Radio (3 MHz to 3 GHz); HF Radio (3 GHz to 30 GHz); Microwave (30 to 300 GHz)

Model Description

consider the merging of two differentially rotating NSs into a uniformly rotating hypermassive NS. Upon coalescence, the merger spins down and magnetic braking generates coherent radiation. Since the merger rate of NSs is consistent with the expected FRB rate, this model implies that a large fraction of NS mergers must produce FRBs. Significant mass ejections are likely to occur during the merger process, which render FRBs unable to penetrate the ejecta. There is a 1 ms time frame after the maximum rotation speed of the merger is reached and before the release of dynamical ejecta, during which the transmission of a single FRB is possible.