starquake
Noun
Meaning
starquake (plural starquakes)
(astronomy) A violent tremor or quake that occurs on or near the surface of a star, especially a collapsed star.
Related terms
Examples
After the starquake, the star will have a smaller equatorial radius, and because angular momentum is conserved, its rotational speed has increased.
Due to the stiffness of the "neutron" crust, this happens as discrete events when the crust ruptures, creating a starquake similar to earthquakes.
Glitches are thought to be the effect of a starquake —as the rotation of the neutron star slows, its shape becomes more spherical.