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2006MNRAS.369.1211K - Mon. Not. R. Astron. Soc., 369, 1211-1220 (2006/July-1)
A fossil galaxy cluster: an X-ray and optical study of RX J1416.4+2315.
KHOSROSHAHI H.G., MAUGHAN B.J., PONMAN T.J. and JONES L.R.
Abstract (from CDS):
Using the spectroscopically identified cluster members, we present the galaxy luminosity function for this fossil system. We measure the velocity dispersion of the galaxies to be ∼700 km/s based on 18 confirmed members. The dynamical mass is nearly twice the total gravitational mass derived from the X-ray analysis. The measured R-band mass-to-light ratio, within the virial radius, is ∼440 M☉/L☉which is not unusual for clusters of galaxies. The central giant elliptical galaxy has discy isophotes and spectral features typical of elliptical galaxies.
Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS
Journal keyword(s): galaxies: clusters: general - galaxies: elliptical and lenticular, cD - galaxies: haloes - intergalactic medium - X-rays: galaxies - X-rays: galaxies: clusters
Simbad objects: 7
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