Scintillation velocities for four millisecond pulsars

Details Scintillation velocities for four millisecond pulsars Scintillation velocities for four millisecond pulsars

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.273..122n&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 273, Issue 1, pp. 122-128.

Astronomy and Astrophysics

Astronomy

22

Radiative Transfer, Stars: Kinematics, Pulsars: General, Radio Continuum: Stars

Scientific paper

A survey for pulsars with the Parkes radio telescope has discovered a number of millisecond pulsars with low dispersion measures. We have measured the scintillation velocities for four of these pulsars, all of which have velocities significantly less than 100 km s^-1. Although the velocities of the three binary millisecond pulsars are low compared with the majority of `normal' pulsars, they remain consistent with their formation through the standard route of supernova explosion followed by a spin-up phase. Selection effects which prevent the detection of millisecond pulsars at distances greater than ~1 kpc imply that we detect only the lower end of the velocity distribution. PSR J1730-2304, a single millisecond pulsar, has a very low scintillation velocity and may have formed through the merger of two white dwarfs.

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