The galactic population of pulsars

Astronomy and Astrophysics – Astronomy

Scientific paper

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Milky Way Galaxy, Pulsars, Star Distribution, Distance, Monte Carlo Method, Stellar Evolution, Stellar Luminosity

Scientific paper

In order to draw statistical conclusions about the overall population of pulsars in the Galaxy, the authors have analysed a sample of 316 pulsars detected in surveys carried out at Jodrell Bank, Arecibo, Molonglo, and Green Bank. They quantify the important selection effects of each survey, and describe a statistically reliable pulsar distance scale. The authors conclude that the Galaxy contains approximately 70000 potentially observable pulsars with luminosities above 0.3 mJy kpc2. The distribution in galactocentric radius rises smoothly through the solar location towards the galactic centre and peaks inside 6 kpc. The galactic z distribution has a scale height of about 400 pc, much larger than that of the OB stars from which pulsars form. The authors then consider the period and luminosity evolution of pulsars.

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