RXJ1720.1+2638: a Nearly Relaxed Cluster with a Fast Moving Core?
Abstract
Observed with previous X-ray missions, RXJ1720.1+2638 looks like the prototype of a "relaxed cluster of galaxies". The cluster appears azimuthally symmetric and the X-ray brightness peak coincides with the cluster central galaxy. Thanks to its unprecedented spatial resolution, the Chandra observation of this cluster shows a far more complex structure. In particular it shows two X-ray features, on the opposite sides of the X-ray peak, that strongly indicate motion of the cluster core. Because of the low exposure of the previous observation several issues relative to the cluster formation and evolution are answered. We propose a 52ks ASCI-I observation to study the details of the dual structure in the gravitational potential of this cluster.
- Publication:
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Chandra Proposal
- Pub Date:
- September 2001
- Bibcode:
- 2001cxo..prop.1000M
- Keywords:
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- Chandra Proposal ID #03800537