Two types of glitches in a solid quark star model

TL;DR

This paper proposes that two distinct glitch types in pulsars are caused by different starquake mechanisms in solid strange stars, aligning with observed energy release patterns and pulsar data.

Contribution

It introduces a model linking two glitch types to starquakes in solid quark stars, supported by equations of state and pulsar parameters.

Findings

Two glitch types correspond to different starquake mechanisms.

Model reproduces observed glitch behaviors and energy releases.

Results align with pulsar observations and constraints.

Abstract

TThe glitch of anomalous X-ray pulsars \& soft gamma repeaters (AXP/SGRs) usually accompanied with detectable energy releases manifesting as X-ray bursts or outbursts, while the glitch of some pulsars like Vela release negligible energy. We find that these two types of glitches can naturally correspond to two types of starquake of solid strange stars. By applying the EoS of quark cluster star and some realistic pulsar parameters, we can reproduce consistent results compared with previous constraints and observations.