Hot Dust in Cool Cores

Details Hot Dust in Cool Cores Hot Dust in Cool Cores

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop.3506s&link_type=abstract

Spitzer Proposal ID #3506

Physics

Scientific paper

With IRAC primarily, and MIPS to complement, we propose to obtain sensitive thermal imaging of hot dust in two archetypal, powerful X-ray clusters (cool-core clusters, aka cooling-flows). Dust is pivotal in connecting the diverse environments of these clusters. It provides a window for us to study the physics of interfaces between hot and cold ISM and the transport processes that may be absolutely fundamental in dictating the dominant physical process at work. In these clusters, hot, thermal plasma produces strong X-ray emission, gas a thousand times cooler radiates intense optical emission lines, while molecular and neutral gas are also known to be present, along with ultra-relativistic plasma associated with AGN, radio sources and jets. Recent dramatic observations have shown that all of these disparate aspects of cluster physics may be fundamentally connected, with transport processes and feedback mechanisms potentially critical in developing a consistent and coherent understanding of cluster physics.

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