Chandra Observations of Abell 222/Abell 223

Details Chandra Observations of Abell 222/Abell 223 Chandra Observations of Abell 222/Abell 223

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21344816d&link_type=abstract

American Astronomical Society, AAS Meeting #213, #448.16; Bulletin of the American Astronomical Society, Vol. 41, p.338

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the analysis of Chandra observations of two rich clusters in a binary pair, Abell 222 & Abell 223. The clusters were observed with the ACIS-I detector for a total of 45 ksecs in ``VERY FAINT'' mode. After screening the data we fit the surface brightness of both clusters we find that both exhibit signs of a past merger. Fitting the surface brightness of the clusters reveal significant changes in the ellipticity and position angle of the fitted ellipses, which are signs that the clusters have not fully relaxed after a past merger. Neither cluster shows evidence of shocks in the temperature maps. The temperature of each cluster is very similar, 5.17 keV for A 222 and 6.20 keV for A223. The temperature of the bridge region between the two clusters does not show any temperature enhancement but does show enriched gas.

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