Spiral-arm substructures in the intracluster gas

Details Spiral-arm substructures in the intracluster gas Spiral-arm substructures in the intracluster gas

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011rmxac..40..125l&link_type=abstract

XIII Latin American Regional IAU Meeting (Eds. W. J. Henney & S. Torres-Peimbert) Revista Mexicana de Astronomía y Astrofísica (

Astronomy and Astrophysics

Astronomy

Galaxy: Clusters, X-Rays: General

Scientific paper

We present a detailed analysis of nearby galaxy clusters observed with the Chandra X-ray satellite, focusing on the projected density and temperature distributions. Many of these objects have similar morphologies, which exhibit spiral-like substructure, analogous to those found in hydrodynamic simulations of cluster collisions with non-zero orbital angular momentum. These spiral-like structures may be caused by off-axis collisions that will lead to minor mergers. Since these features occur in regions of high density, they may confine radio emission from the central galaxy producing unusual radio morphology.

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