A 5.75-millisecond pulsar in the globular cluster 47 Tucanae

Details A 5.75-millisecond pulsar in the globular cluster 47 Tucanae A 5.75-millisecond pulsar in the globular cluster 47 Tucanae

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990natur.345..598m&link_type=abstract

Nature (ISSN 0028-0836), vol. 345, June 14, 1990, p. 598-600. Research supported by CNR.

Astronomy and Astrophysics

Astronomy

30

Globular Clusters, Pulsars, Radio Astronomy, Fourier Transformation, Stellar Mass, Stellar Mass Accretion, X Ray Binaries

Scientific paper

A pulsar with a period of 5.75 ms and a dispersion measure of 25/cu cm pc has been found in the direction of 47 Tucanae. Despite its probable origin as a member of a binary system, timing measurements show that the pulsar is now single. The observed dispersion measure is consistent with the pulsar lying outside the Galactic electron layer and within 47 Tucanae, but it is very different from the value of 67/cu cm pc for the pulsars that were reported recently as being in this globular cluster. It is suggested that the latter pulsars probably do not in fact lie within 47 Tucanae.

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