Quakes in solid quark stars

A starquake mechanism for pulsar glitches is developed in the solid quark star model. It is found that the general glitch natures (i.e., the glitch amplitudes and the time intervals) could be reproduced if solid quark matter, with high baryon density but low temperature, has properties of shear modulus μ=1030–34 erg/cm3 and critical stress σc=1018∼24 erg/cm3. The post-glitch behavior may represent a kind of damped oscillations.