Evidence for Central Abundance Enhancements in A496

Details Evidence for Central Abundance Enhancements in A496 Evidence for Central Abundance Enhancements in A496

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...189.3701d&link_type=abstract

American Astronomical Society, 189th AAS Meeting, #37.01; Bulletin of the American Astronomical Society, Vol. 28, p.1317

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In this work we present ASCA spatially resolved spectra for the cooling flow cluster Abell 496. We find a mild abundance gradient and a more obvious temperature gradient: within the central 3 arcminutes, abundances are 0.48 solar and the temperature is 3.38 keV; in the outer regions the abundance is 0.35 and the temperature is 4.22 keV; the outer values differ from the central values at >90% confidence levels. We also compare the abundance distribution to galaxy morphological distributions in A496 to determine which galaxy population contributes most to ICM enrichment; analogous relations for Virgo and Coma are also described.

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