A Deep Observation of a Radio-Quiet Cooling Flow

Details A Deep Observation of a Radio-Quiet Cooling Flow A Deep Observation of a Radio-Quiet Cooling Flow

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cxo..prop.1791d&link_type=abstract

Chandra Proposal ID #06800721

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Chandra Proposal Id #06800721

Scientific paper

We propose to follow-up our recent Chandra observation of a cluster that is uniquely suited to providing a simple test of cluster cooling models. With current data, we show that A1650 has a short cooling time in its core, a peaked surface brightness distribution, and dual-phase core gas, yet does not exhibit a radio source or an emission-line nebula. Therefore this cluster presents the simplest example of the phenomenon, free of obfuscating factors, and may represent a pre-``catastrophe'' phase. Its cool gas is 2-3x cooler than that in other cooling flows and it presents a strong metallicity gradient. Deep observations will reveal the location and the thermal nature of the soft phase and the iron emission, variations in Type Ia/II abundance patterns, and temperature and abundance maps.

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