The Dynamical State of Abell 1689

Details The Dynamical State of Abell 1689 The Dynamical State of Abell 1689

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20514709p&link_type=abstract

American Astronomical Society Meeting 205, #147.09; Bulletin of the American Astronomical Society, Vol. 36, p.1594

Astronomy and Astrophysics

Astronomy

Scientific paper

We present projected temperature, electron density, plasma pressure, and entropy maps of the galaxy cluster Abell 1689 derived from Chandra ACIS observations using three different techniques. The morphology of the pressure and entropy maps suggests that the overall dynamical state of the cluster is consistent with hydrostatic equilibrium, although we confirm the presence of a hot substructure about 170 kpc (projected) from the cluster center. We provide an estimate its effect on the measurement of the mass profile.

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