Braking indices of pulsars obtained in the presence of an effective force
arXiv:1607.06129 · doi:10.1093/mnras/stw1636
Abstract
Braking indices of pulsars present a scientific challenge as their theoretical calculation is still an open problem. In this paper we report results of a study regarding such calculation which adapts the canonical model (which admits that pulsars are rotating magnetic dipoles) basically by introducing a compensating component in the energy conservation equation of the system. This component would correspond to an effective force that varies with the first power of the tangential velocity of the pulsar's crust. We test the proposed model using data available and predict braking indices values for different stars. We comment on the high braking index recently measured of the pulsar J1640-4631.
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Cited by in corpus (4)
- The Dipole Magnetic Field and Spin-down Evolutions of The High Braking Index Pulsar PSR J1640-4631
- Explaining high-braking indice of magnetars SGR 0501+4516 and 1E 2259+586 using the double magnetic-dipole model
- Could the low braking index pulsar PSR J1734-3333 evolve into a magnetar?
- Relating Braking Indices of Young Pulsars to the Dynamics of Superfluid Cores