The Galactic population and birthrate of X-ray pulsars

Details The Galactic population and birthrate of X-ray pulsars The Galactic population and birthrate of X-ray pulsars

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.212..219b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 212, Jan. 1, 1985, p. 219-229.

Astronomy and Astrophysics

Astronomy

7

Milky Way Galaxy, Pulsars, Star Distribution, Stellar Evolution, X Ray Sources, Distance, Estimates, Stellar Luminosity

Scientific paper

It is well known from analysis of the 330 observed radio pulsars that the total Galactic population must be of the order of 1,000,000 and lifetime estimates indicate a birthrate in the Galaxy of the order of one/decade. Similar estimates have not been made for the 24 observed X-ray pulsars, partly because this population has been assumed to be very small. In this paper, the surprising similarity of the observed distribution of X-ray and radio pulsars is used to show that the total Galactic population is of the order of 10,000. Using lifetime estimates, it is shown that the birthrate of X-ray pulsars may be comparable to the radio pulsar birthrate, and could be as frequent as one/year.

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