Crustal Entrainment and Pulsar Glitches
Open Access
- 2 January 2013
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 110 (1), 011101
- https://doi.org/10.1103/physrevlett.110.011101
Abstract
Large pulsar frequency glitches are generally interpreted as sudden transfers of angular momentum between the neutron superfluid permeating the inner crust and the rest of the star. Despite the absence of viscous drag, the neutron superfluid is strongly coupled to the crust due to nondissipative entrainment effects. These effects are shown to severely limit the maximum amount of angular momentum that can possibly be transferred during glitches. In particular, it is found that the glitches observed in the Vela pulsar require an additional reservoir of angular momentum.Keywords
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Funding Information
- U.S. Department of Energy
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