5–30 Jun 2017
Nordita, Stockholm
Europe/Stockholm timezone

Resonant Shattering Flares as EM Counterparts

21 Jun 2017, 16:30
15m
FD5 (Nordita, Stockholm)

FD5

Nordita, Stockholm

Speaker

David Tsang

Description

Resonant Shattering Flares (RSFs) are expected to occur during the inspiral phase for some NS-NS and NS-BH mergers. They result from the resonant tidal excitation of the NS crust-core interface mode fracturing the crust and sparking a relativistic pair-photon fireball, emitted seconds before the merger. RSFs are prompt, bright, and isotropic, allowing detection and triggering from well beyond the LIGO-horizon and may be an important source for detectable electromagnetic counterparts to GW mergers. When a GRB is present, they appear as pre-cursors to the main flare, while for off-axis systems they should appear as isolated under-luminous GRBs with extremely short duration. I will discuss the parameter space and detectable emissions for RSFs compared to other counterparts, as well as afterglow, detection, and triggering strategies.

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