Studies of nearby poor clusters - A3574 and S753

Studies of nearby poor clusters - A3574 and S753

Photometric and spectroscopic data are presented for two clusters, A3574 and S753, belonging to the Centaurus concentration of galaxies. The masses of the clusters are estimated at 1.5 x 10 to the 14th solar masses; no evidence of substructure has been detected in either cluster. The solution of a t...

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Veröffentlicht in:The Astronomical journal 1991-01, Vol.101, p.57-65
Hauptverfasser: Willmer, C. N. A., Focardi, P., Chan, R., Pellegrini, P. S., da Costa, Nicolaci L.
Format: Artikel
Sprache:eng
Schlagworte:
640105 - Astrophysics & Cosmology- Galaxies
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
GALAXY CLUSTERS
LUMINOSITY
MANY-BODY PROBLEM
MASS
MORPHOLOGY
MOTION
OPTICAL PROPERTIES
PHOTOGRAPHY
PHOTOMETRY
PHYSICAL PROPERTIES
ROTATION
SPECTROSCOPY
TWO-BODY PROBLEM
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Beschreibung
Zusammenfassung:Photometric and spectroscopic data are presented for two clusters, A3574 and S753, belonging to the Centaurus concentration of galaxies. The masses of the clusters are estimated at 1.5 x 10 to the 14th solar masses; no evidence of substructure has been detected in either cluster. The solution of a two-body linear orbit suggests that the clusters do not form a bound system, although the result is marginal. (V.L.)
ISSN:0004-6256
1538-3881
DOI:10.1086/115665