The period derivatives of pulsars.
Abstract
The period derivatives for 56 pulsars have been obtained from two sets of timing observations 1 yr apart. A total of 84 period derivatives are now known. Statistical relationships between period, period derivative, magnetic field strength, luminosity, integrated pulse width and apparent age are examined. The distribution of values of period and period derivative is explained by postulating a secular decay of magnetic dipole moment. The cutoff of radio emission appears to be related to the magnetic field near the velocity of light cylinder.
 Publication:

Monthly Notices of the Royal Astronomical Society
 Pub Date:
 June 1975
 DOI:
 10.1093/mnras/171.3.579
 Bibcode:
 1975MNRAS.171..579L
 Keywords:

 Periodic Functions;
 Pulsars;
 Statistical Correlation;
 Stellar Luminosity;
 Stellar Magnetic Fields;
 Correlation Coefficients;
 Error Analysis;
 Magnetic Flux;
 Pulse Duration;
 Tables (Data);
 Astrophysics