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A 5.75-millisecond pulsar in the globular cluster 47 TucanaeA 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.
Document ID
19900052143
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Manchester, R. N.
(CSIRO Australia Telescope National Facility, Epping, United States)
Lyne, A. G.
(Commonwealth Scientific and Industrial Research Organization Epping, Australia)
Johnston, S.
(Manchester, Victoria University Jodrell Bank, United Kingdom)
D'Amico, N.
(Palermo, Universita Italy)
Lim, J.
(MacQuarie University North Ryde, Australia)
Kniffen, D. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
June 14, 1990
Publication Information
Publication: Nature
Volume: 345
ISSN: 0028-0836
Subject Category
Astrophysics
Accession Number
90A39198
Distribution Limits
Public
Copyright
Other

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