SIMBAD references

2012ApJ...761...32M - Astrophys. J., 761, 32 (2012/December-2)

Fast fossil rotation of neutron star cores.

MELATOS A.

Abstract (from CDS):

It is argued that the superfluid core of a neutron star super-rotates relative to the crust, because stratification prevents the core from responding to the electromagnetic braking torque, until the relevant dissipative (viscous or Eddington-Sweet) timescale, which can exceed ∼103 yr and is much longer than the Ekman timescale, has elapsed. Hence, in some young pulsars, the rotation of the core today is a fossil record of its rotation at birth, provided that magnetic crust-core coupling is inhibited, e.g., by buoyancy, field-line topology, or the presence of uncondensed neutral components in the superfluid. Persistent core super-rotation alters our picture of neutron stars in several ways, allowing for magnetic field generation by ongoing dynamo action and enhanced gravitational wave emission from hydrodynamic instabilities.

Abstract Copyright:

Journal keyword(s): dense matter - gravitational waves - hydrodynamics - stars: interiors - stars: neutron

Simbad objects: 9

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2021.03.01-09:24:29

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