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Abell 1763 and its Cluster Feeding Filament: Constraints on the Intra-filament Medium

Published online by Cambridge University Press:  05 December 2011

Louise O. V. Edwards
Affiliation:
California Institute of Technology/Herschel Science Center, 1200 E. California Blvd. Pasadena, CA, 91125 email: louise@ipac.caltech.edu
Dario Fadda
Affiliation:
California Institute of Technology/Herschel Science Center, 1200 E. California Blvd. Pasadena, CA, 91125 email: louise@ipac.caltech.edu
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Abstract

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Galaxies are found to inhabit a variety of environments. They are often found in pairs, groups, or clusters. Cosmological simulations predict that these clusters are connected on a larger scale by filaments, but because these large scale structures are so vast, and because they are of intermediate density, observational constraints on their properties are difficult to achieve. We find a large-scale filament in the Abell 1763-Abell 1770 superstructure, determine that the star-formation therein is enhanced, and uncover a bent double lobe radio source midway across the filament. From the bend of this AGN'a jets, we probe the density of the surrounding intra-filament medium (IFM), constrained to be between 1-20x10−29 gm/cm3. This density is consistent with direct probes of the IFM as well as theoretical models.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2011

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