Crab Nebula

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© NASA, CXC, and SAO.

When compared to the Vela pulsar, the glitches seen in the younger and more rapidly rotating (P=33msec) Crab pulsar are some two to three orders of magnitude smaller and may be produced by starquakes. As the pulsar ages, its period will decrease, while pinning regions are expected to develop that will lead to glitch magnitudes, frequency, and post-glitch behavior similar to that seen in the Vela pulsar. (Unit: 8)