Cluster Analysis of Pulsar Parameters

I. F. Malov and O. I. Malov

Lebedev Institute of Physics, Russian Academy of Sciences, Pushchino,
Moscow oblast, 142292 Russia

Received December 6, 1996

Abstract—The division of pulsars into groups on the basis of cluster analysis and the main components method is
studied. Pulsars with periods P > 1 and P < 0.1 s form two separate classes; the short-period objects (P < 0.1 s), in
turn, divide into two groups. One of these consists of young pulsars that form in the Galactic plane or in globular
clusters, while the other group consists of spun-up pulsars.

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