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In order to draw statistical conclusions about the overall population of pulsars in the Galaxy, we have analysed a sample of 316 pulsars detected in surveys carried out at Jodrell Bank. Arecibo, Molonglo, and Green Bank. We quantify the important selection effects of each survey, and describe a statistically reliable pulsar distance scale based on a model for the large-scale distribution of free electrons in the Galaxy. The distance scale is calibrated by independent distance estimates for 38 pulsars. These results allow the spatial and luminosity distribution functions of galactic pulsars to be computed. We conclude that the Galaxy contains approximately 70000 potentially observable pulsars with luminosities above 0.3 mJy kpc2. Most of these pulsars have luminosities less than 10 mJy kpc2, more than an order of magnitude less than the mean luminosity of the observed sample. The distribution in galactocentric radius rises smoothly through the solar location towards the galactic centre and peaks inside 6 kpc, again in contrast to the observed sample which peaks near the Sun. The galactic z distribution has a scale height of about 400 pc, much larger than that of the OB stars from which pulsars form.
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A. G. Lyne
West Virginia University
R. N. Manchester
West Virginia University
J. H. Taylor
Metropolitan State University of Denver
Monthly Notices of the Royal Astronomical Society
University of Manchester
Commonwealth Scientific and Industrial Research Organisation
Institute for Advanced Study
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Lyne et al. (Mon,) studied this question.
synapsesocial.com/papers/6a171287f3be5e880d6bea46 — DOI: https://doi.org/10.1093/mnras/213.3.613