Proper motion of pulsars by radio interferometry

Astronomy and Astrophysics – Astronomy

Scientific paper

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Microwave Interferometers, Pulsars, Radio Astronomy, Stellar Evolution, Stellar Motions, B Stars, O Stars, Radio Interferometers

Scientific paper

The paper presents first results of a pulsar proper-motion program using the NRAO 35-km interferometer at 2.7 GHz. PSR 1133 + 16 has a motion of 0.40 arcsec/yr, which is consistent with a result derived from pulse timing. PSR 1929 + 10 has a motion of 0.15 arcsec/yr. Limits for three other objects are given. Space velocities derived from the motion of PSR 1133 + 16 and PSR 1929 + 10 confirm previous indirect evidence which suggested that pulsars are given a linear momentum impulse at birth.

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