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Braking Indices for Twenty Pulsars

Published online by Cambridge University Press:  12 April 2016

Simon Johnston  and
David Galloway
Simon Johnston
Affiliation:
Research Centre for Theoretical Astrophysics, Univ. Sydney, Australia
David Galloway
Affiliation:
Research Centre for Theoretical Astrophysics, Univ. Sydney, Australia School of Mathematics and Statistics, Univ. of Sydney, Australia

Abstract

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We have derived a formula for the braking index of pulsars via integration rather than the conventional differentiation method. We applied the method to 20 pulsars and find that virtually all the derived braking indices are dominated by the effects of (unseen) glitches, the recovery from which corrupts the value of . However, any real, large, positive braking index has implications for magnetic field decay and offers support to recent models of pulsar evolution.

Type
Part 9. Population and Neutron Star Properties
Information
International Astronomical Union Colloquium , Volume 177: Pulsar Astronomy - 2000 and Beyond , 2000 , pp. 599 - 600
Copyright
Copyright © Astronomical Society of the Pacific 2000

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