Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-08-15
Astronomy and Astrophysics
Astrophysics
transcipt of a contribution to The Dark Universe: Matter, Energy, and Gravity, STScI Symposium, April 2001, M. Livio, ed
Scientific paper
We discuss lensing properties of the nearby cluster Abell 2152. Recent work shows that Abell 2152 is actually the projection of two different clusters, one of which is a Hercules supercluster member at z=0.043, while the other is more than 3 times as distant. The cluster centers have a projected separation of only 2.4 arcmin, and our data indicate that the foreground cluster lenses members of the background one. We have an ongoing program to measure the magnification of the fundamental plane in the background cluster. The magnification of this standard rod will provide an estimate of the foreground cluster mass free from the uncertainty of the mass-sheet degeneracy which affects mass estimates based on weak shear.
No associations
LandOfFree
Cluster-Cluster Lensing in Abell 2152 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 Cluster-Cluster Lensing in Abell 2152, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cluster-Cluster Lensing in Abell 2152 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-135744