MWN Shock (Single Flare)

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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
SNR (Magnetars) MWD Shock (Single Flare) Single Maser Synch. Yes Afterglow -- -- Maybe -- Low energy gamma-rays, sGRB if jet aligned Yes --,, None

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

Model Description

One of the first postulations for the Lorimer burst was a magnetar hyperflare. Since then the idea has been widely considered and built upon. An FRB model analogous to the pulsar wind bubble model above has been proposed, with the power now deriving from the magnetic energy of a magnetar, and the shock resulting from a giant flare impacting a magnetar wind nebula (MWN). A powerful synchrotron maser consistent with FRBs is formed at the termination shock, either by magnetic reconnection or a ring-like distribution of gyrating particles at the shock front.

Observational Constraints

Emission is expected to have a hump in the nebula spectrum near the nebula's self-absorption frequency.