A second measurement of a pulsar braking index

Details A second measurement of a pulsar braking index A second measurement of a pulsar braking index

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985natur.313..374m&link_type=abstract

Nature (ISSN 0028-0836), vol. 313, Jan. 31, 1985, p. 374-376.

Physics

56

Braking, Pulsars, Stellar Rotation, X Ray Sources, Electrodynamics, Indexes (Ratios), Lines Of Force, Random Processes, Stellar Magnetic Fields, Torque

Scientific paper

The braking index, n, of a pulsar, which describes the dependence of the braking torque on rotation frequency, is a fundamental parameter of pulsar electrodynamics. The authors present radio timing observations of the X-ray and radio pulsar, PSR 1509-58, made over an approximately 2-year interval, which yield a second significant measurement of n = 2.83±0.03, more than that for the Crab pulsar, but less than the canonical value of 3.

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