Advantages at Multi-Wavelengths: a Pre-Processed Galaxy Group within a Cluster

Details Advantages at Multi-Wavelengths: a Pre-Processed Galaxy Group within a Cluster Advantages at Multi-Wavelengths: a Pre-Processed Galaxy Group within a Cluster

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011scgg.conf...14f&link_type=abstract

"Structure in Clusters and Groups of Galaxies in the Chandra Era, 2011 Chandra Science Workshop held July 12-14, 2011. Edited by

Computer Science

Scientific paper

We utilize multi-wavelength data to confirm an infalling galaxy group embedded within the cluster Abell 3128 (z = 0.05). While previous analyses of the merging complex highlighted primarily the optical or the x-ray wavelengths, a more complete picture results from the inclusion of moderate-resolution radio (1.4 GHz) photometry of the extended emission. Specifically, the directionality of two, head-tail radio galaxies corroborates the picture of an infalling group with an advancing front of mildly shocked gas (M ˜ 1.25). Optical spectroscopy also supports the efficiency of pre-processing within the group environment since the group members are highly evolved and yet foreign to the cluster (t_{merge} <1 Gyr).

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