The Position and Proper Motion of PSR{B1257+12}

Details The Position and Proper Motion of PSR{B1257+12} The Position and Proper Motion of PSR{B1257+12}

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...189.7404h&link_type=abstract

American Astronomical Society, 189th AAS Meeting, #74.04; Bulletin of the American Astronomical Society, Vol. 28, p.1368

Astronomy and Astrophysics

Astronomy

Scientific paper

We have performed accurate astrometric observations of the planet pulsar PSR 1257+12 with the VLA on two epochs separated by approximately one year. These observations have resulted in measurements of the absolute position and a preliminary proper motion of PSR 1257+12 with typical accuracies of 100 mas and 30 mas year(-1) , respectively. These results are compared to independently-determined values from a pulsar timing analysis. The proper motion measurements agree within the errors, and a discrepancy which existed between the earlier timing and interferometric absolute positions (Wolszczan & Frail 1992) has now been resolved.

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