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Dynamics of the globular cluster NGC 362A combination of V-band CCD images and echelle spectra of member red giants is presently used to examine the internal dynamics of the globular cluster NGC 362. A total of 285 stellar spectra were obtained of 215 stars for radial velocity determinations, and the true cluster binary fraction was determined from simulations to be 0.15 for circular orbits and 0.27 for orbits with an f(e) = e (eccentricity) distribution function. An overabundance of binaries is surmised for NGC 362 on this basis.
Document ID
19940033955
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Fischer, Philippe
(McMaster Univ. Hamilton, Canada; AT&T Bell Labs., Murray Hill, NJ, United States)
Welch, Douglas L.
(McMaster Univ. Hamilton, Canada)
Mateo, Mario
(Carnegie Inst. of Washington, Observatories, Pasadena CA, United States)
Cote, Patrick
(McMaster Univ. Hamilton, Canada)
Date Acquired
August 16, 2013
Publication Date
October 1, 1993
Publication Information
Publication: Astronomical Journal
Volume: 106
Issue: 4
ISSN: 0004-6256
Subject Category
Astrophysics
Accession Number
94A10610
Funding Number(s)
CONTRACT_GRANT: NAS5-26555
Distribution Limits
Public
Copyright
Other

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