Journal article

Millisecond pulsar velocities

M Toscano, JS Sandhu, M Bailes, RN Manchester, MC Britton, SR Kulkarni, SB Anderson, BW Stappers

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | BLACKWELL SCIENCE LTD | Published : 1999

Abstract

We present improved timing parameters for 13 millisecond pulsars (MSPs), including nine new proper motion measurements. These new proper motions bring to 23 the number of MSPs with measured transverse velocities. In light of these new results we present and compare the kinematic properties of MSPs with those of ordinary pulsars. The mean transverse velocity of MSPs was found to be 85 ± 13 km s-1, a value consistent with most models for the origin and evolution of MSPs and approximately a factor of 4 lower than that of ordinary pulsars. We also find that, in contrast to young ordinary pulsars, the vast majority of which are moving away from the Galactic plane, almost half of the MSPs are movi..

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