The parallax and proper motion of PSR1451-68

Details The parallax and proper motion of PSR1451-68 The parallax and proper motion of PSR1451-68

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990natur.343..240b&link_type=abstract

Nature (ISSN 0028-0836), vol. 343, Jan. 18, 1990, p. 240, 241.

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37

Interstellar Matter, Pulsars, Stellar Motions, Stellar Parallax, Electron Density (Concentration), Radio Interferometers, Reference Stars

Scientific paper

Data from the Parkes-Tidbinbilla interferometer are used here to determine the parallax and proper motion of PSR1451-68, obtaining a value of 2.2 + or - 0.3 milliarcsec for the parallax and 41.4 + or - 0.9 milliarcsec/yr for the proper motion. When combined with the dispersion measure, the parallax yields a value of 0.019 + or - 0.003/cu cm for the mean density of free electrons along the line of sight to this pulsar. Together with other measurements, this result indicates that the interstellar medium within 500 pc of the sun is typical of that at greater distances.

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