The Medium Redshift Clusters CL0017-20 and CL0500-24

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dc.creatorInfante, L.
dc.creatorFouque, P
dc.creatorHertling, G.
dc.creatorWay, M. J.
dc.creatorGiraud, E.
dc.creatorQuintana, H.
dc.date1994-08-19
dc.date.accessioned2026-07-07T02:19:22Z
dc.date.available2026-07-07T02:19:22Z
dc.descriptionWe present magnitudes and redshifts of galaxies in the cluster of galaxies CL0017-20 and in the double cluster CL0500-24. Luminosity functions and velocity distributions have been derived. CL0017-20 possesses a virial mass of $2.9 \times 10^{14}$ M$_\odot$ and a \vmag band luminosity of $2.3 \pm 0.5 \times 10^{12}$ L$_\odot$ ($M/L_{\rm V} = 127$), much of it in a very compact core of size 113 kpc. Our new velocities and photometry of CL0500-24 confirm its double nature. Our group algorithm clearly detects two subconcentrations with masses 1.9 and $2.2 \times 10^{14}$ M$_{\odot}$. Its total \vmag band luminosity amounts to $2.7 \pm 0.8 \times 10^{12}$ L$_{\odot}$ ($M/L_{\rm V}$ of 157). Since the crossing and collapse times in both clusters are smaller than the age of the Universe, they appear bound and virialized. It is surprising that although $M/L$ is small in these clusters, giant arcs have been detected in both.
dc.description19 pages, compressed uuencoded postscript file, MZ/1/94
dc.identifierhttps://arxiv.org/abs/astro-ph/9408072
dc.identifierhttp://arxiv.org/abs/astro-ph/9408072
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/9838
dc.subjectAstrophysics
dc.titleThe Medium Redshift Clusters CL0017-20 and CL0500-24
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