Neutron star dynamics under time dependent external torques

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Alpar, M. Ali and Gügercinoğlu, Erbil (2017) Neutron star dynamics under time dependent external torques. In: 11th International Conference Physics of Neutron Stars - 50 Years After, Saint Petersburg, Russia

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Official URL: http://dx.doi.org/10.1088/1742-6596/932/1/012036


The two component model of neutron star dynamics describing the behaviour of the observed crust coupled to the superfluid interior has so far been applied to radio pulsars for which the external torques are constant on dynamical timescales. We recently solved this problem under arbitrary time dependent external torques. Our solutions pertain to internal torques that are linear in the rotation rates, as well as to the extremely non-linear internal torques of the vortex creep model. Two-component models with linear or nonlinear internal torques can now be applied to magnetars and to neutron stars in binary systems, with strong variability and timing noise. Time dependent external torques can be obtained from the observed spin-down (or spin-up)time series.

Item Type:Papers in Conference Proceedings
Subjects:Q Science > QB Astronomy > QB460-466 Astrophysics
Q Science > QB Astronomy
ID Code:35527
Deposited By:Erbil Gügercinoğlu
Deposited On:13 Aug 2018 09:44
Last Modified:13 Aug 2018 09:44

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