Abell 665: Determining the Connection Between Cluster Dynamics and Radio Halos

Details Abell 665: Determining the Connection Between Cluster Dynamics and Radio Halos Abell 665: Determining the Connection Between Cluster Dynamics and Radio Halos

Sep 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010cxo..prop.3031s&link_type=abstract

Chandra proposal ID #12800704

Physics

Scientific paper

Abell 665 is a hot, massive cluster which is undergoing a major merger. The previous, short Chandra observations have revealed a surface brightness discontinuity to the south, which has been described as either a cold front or a shock; the existing spectra allow either interpretation. There is a hot region to the south of the discontinuity which may be post-shock gas, but the merger bow shock has not been located. Recently, we have found density jumps to the east, west, and north which may be Mach number ~1.5 shocks. A665 hosts a powerful radio halo, which seems to extend to these shock regions. We propose a longer Chandra observation to study the features revealed in the shorter exposures, and to determine the dynamical state and connection to the radio halo in this cluster.

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