Astronomy and Astrophysics – Astrophysics
Scientific paper
1994-08-19
Astronomy and Astrophysics
Astrophysics
19 pages, compressed uuencoded postscript file, MZ/1/94
Scientific paper
We 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.
Fouque' Pascal
Giraud Edmond
Hertling Gisela
Infante Leopoldo
Quintana Hernan
No associations
LandOfFree
The Medium Redshift Clusters CL0017-20 and CL0500-24 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Medium Redshift Clusters CL0017-20 and CL0500-24, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Medium Redshift Clusters CL0017-20 and CL0500-24 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-64506