Accurate timing and interferometer positions for the millisecond pulsar 1937 + 21 and the binary pulsar 1913 + 16

Abstract

view Abstract Citations (16) References (18) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Accurate timing and interferometer positions for the millisecond pulsar 1937+21 and the binary pulsar 1913+16. Backer, D. C. ; Fomalont, E. B. ; Goss, W. M. ; Taylor, J. H. ; Weisberg, J. M. Abstract The authors have made astrometric interferometer observations of PSR 1937+21 and PSR 1913+16 at the VLA in the FK4 B1950.0 reference frame with positional accuracy of ±0.05arcsec and ±0.15arcsec, respectively. After removing the E terms of aberration, they compare these positions with ones obtained from pulse-timing observations, which are accurate to ±0.001arcsec and ±0.003arcsec, respectively, in the reference frame of solar system ephemerides. The timing position of PSR 1937+21 agrees to within 0.07arcsec(1.3σ) of the VLA position; comparison of the same observations in the J2000.0 reference frame reduces the discrepancy to 0.01arcsec. The result for PSR 1913+16 stengthens the conclusion of Elliot et al. (1980) that a faint star near the pulsar is not the orbiting companion. Publication: The Astronomical Journal Pub Date: November 1985 DOI: 10.1086/113930 Bibcode: 1985AJ.....90.2275B Keywords: Astrometry; Binary Stars; Position (Location); Pulsars; Radio Interferometers; Time Measurement; Accuracy; Ephemerides; Solar System; Stellar Luminosity; Astronomy full text sources ADS | data products SIMBAD (2)