The Remarkable Arc in Abell 1201 - Probing the Mass Profile of Clusters Down to 10KPC
Abstract
We propose to make a moderately deep Chandra observation of the cluster Abell 1201 (z=0.17, L_x=6x10^44 erg/s) which contains a gravitational arc with a uniquely small radius of curvature (2.4"). This arc provides an opportunity to determine the mass profile of a cluster on a scale of 10kpc. It is on this scale that current N-body simulations have the largest disagreements depending on the nature of dark matter and numerical techniques. The proposed Chandra and HST observations will provide two independent measures of the cluster mass profile from 10-->500kpc to put the small scale mass constraint in context and differentiate between mass model predictions on the smallest scales.
- Publication:
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Chandra Proposal
- Pub Date:
- September 2002
- Bibcode:
- 2002cxo..prop.1326E
- Keywords:
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- Chandra Proposal ID #04800980