Timing Behavior and Proper Motions of Millisecond Pulsars PSR J2019+2425 and PSR J2322+2057

Details Timing Behavior and Proper Motions of Millisecond Pulsars PSR J2019+2425 and PSR J2322+2057 Timing Behavior and Proper Motions of Millisecond Pulsars PSR J2019+2425 and PSR J2322+2057

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...183.3705n&link_type=abstract

American Astronomical Society, 183rd AAS Meeting, #37.05; Bulletin of the American Astronomical Society, Vol. 25, p.1346

Astronomy and Astrophysics

Astronomy

Scientific paper

As part of a large-scale millisecond pulsar timing project at the Arecibo Observatory, we have made observations of PSRs J2019+2425 and J2322+2057 spanning approximately two years. The pulse times of arrival can be fit to a simple model of pulsar rotational behavior, earth motion, and pulsar motion. The effect of proper motion is clearly visible in both data sets; measured values are mu =23+/- 2 mas/yr, Galactic position angle 261+/-4(deg) for J2019+2425 and mu =25+/-5 mas/yr, Galactic position angle 245+/-11(deg) for J2322+2057. These correspond to velocities of 100 km/s and 90 km/s, respectively, assuming distances based on measures of interstellar dispersion to these pulsars. We discuss the reduction of the pulsar motions to the local standards of rest and the implications of these measurements on the evolution of the millisecond pulsar population.

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