Starquakes
| 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 | |||||||
| Other | Starquakes | Repeat | Mag. reconnection | Curv. | Yes | -- | -- | -- | -- | Yes | Yes if jet aligned |
-- | -- | http://adsabs.harvard.edu/abs/2018ApJ...852..140W | None |
Definitions: LF Radio (3 MHz to 3 GHz); HF Radio (3 GHz to 30 GHz); Microwave (30 to 300 GHz)
Model Description
The starquakes of a pulsar have been considered as a source of repeating FRBs. The bursts of FRB 121102 are consistent with the aftershock sequence of an earthquake, where the burst’s time-decaying rate of seismicity falls within the typical values of earthquakes. They also show that the burst energy distribution of FRB 121102 has a power law form, much like that of the Gutenberg-Richter law of earthquakes. Further, the waiting time of bursts has a Gaussian distribution; another characteristic feature of earthquakes.
Observational Constraints
Starquakes are poorly understood, limiting the testability of this theory. They may be associated with SGRs, which offers counterparts for which to search.