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Blue stragglers in the core of the globular cluster 47 TucanaeHigh-resolution observations of the core of the globular cluster 47 Tucanae with the Faint Object Camera on the Hubble Space Telescope reveal a high density of 'blue straggler' stars, occupying the upper end of the main sequence from which all stars in the cluster should have long since evolved. Their presence in the dense core supports the hypothesis that they formed by stellar collision and coalescence, and, as the heaviest objects in the cluster, have drifted to the core.
Document ID
19910061347
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Paresce, F.
(Space Telescope Science Inst. Baltimore, MD, United States)
Meylan, G.
(Space Telescope Science Institute, Baltimore, MD; ESA, Space Science Dept. Noordwijk, Netherlands)
Shara, M.
(Space Telescope Science Inst. Baltimore, MD, United States)
Baxter, D.
(Space Telescope Science Inst. Baltimore, MD, United States)
Greenfield, P.
(Space Telescope Science Institute Baltimore, MD, United States)
Date Acquired
August 14, 2013
Publication Date
July 25, 1991
Publication Information
Publication: Nature
Volume: 352
ISSN: 0028-0836
Subject Category
Astrophysics
Accession Number
91A45970
Distribution Limits
Public
Copyright
Other

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