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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Braking indices of pulsars obtained in the presence of an effective force

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Author(s):
Magalhaes, N. S. ; Okada, A. S. ; Frajuca, C.
Total Authors: 3
Document type: Journal article
Source: Monthly Notices of the Royal Astronomical Society; v. 461, n. 4, p. 3993-3996, OCT 1 2016.
Web of Science Citations: 4
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. (AU)

FAPESP's process: 13/26258-4 - Superdense matter in the universe
Grantee:Manuel Máximo Bastos Malheiro de Oliveira
Support type: Research Projects - Thematic Grants