Abell 119: Cluster Mergers and the Origin of Narrow-Angle-Tail Radio Galaxies

Details Abell 119: Cluster Mergers and the Origin of Narrow-Angle-Tail Radio Galaxies Abell 119: Cluster Mergers and the Origin of Narrow-Angle-Tail Radio Galaxies

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2233s&link_type=abstract

Chandra Proposal ID #08800737

Physics

1

Chandra Proposal Id #08800737

Scientific paper

Abell 119 has two parallel Narrow-Angle-Tail (NAT) radio galaxies projected near its center. Although the dynamic state of the cluster has been uncertain, our short Chandra image showed a central cold front and possible north merger shock, which suggest the cluster is near core passage in a merger. A longer Chandra observation will be used to derive the merger kinematics from the cold front and merger shock. We will determine if the NAT-ICM relative motion is due to galaxy orbits or the cluster merger, which are the two main theories. We will look for interactions between the NATs and the intracluster gas, and see if the NATs have displaced the ICM. We will determine if the large Faraday rotations of the NATs are due to a dense sheath around them or to a large intracluster magnetic field.

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