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Pulsar Braking Index: A Test of Emission Models?

2001/08/31 by R. X. Xu, G. J. Qiao · 3 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Pulsars and Gravitational Waves Research #Quantum and Classical Electrodynamics #astro-ph

paper · pdf · doi:10.1086/324381

published as ApJL, 2001, Vol. 561, L85-L88 · A version with abbreviation, accepted by Astrophysical Journal Letters, http://vega.bac.pku.edu.cn/~rxxu/

arxiv created 2001/09/14 · openalex publication_date 2001/11/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01

Abstract

Pulsar braking torques due to magnetodipole radiation and the unipolar generator are considered, which results in a braking index n of less than 3 and could be employed to test the emission models. Improved equations for the pulsar braking index and magnetic field are presented, which are true if the rotation energy-loss rate equals the sum of the energy-loss rate of dipole radiation and of relativistic particles powered by a unipolar generator. The magnetic field calculated conventionally could be good enough, but only if it were modified by a factor of at most ~0.6. Both inner and outer gaps may coexist in the magnetosphere of the Vela pulsar.

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