Reading the historical chronicle of activity of the SMBH in NGC5813 using cavities and shocks in the surrounding hot gas

Details Reading the historical chronicle of activity of the SMBH in NGC5813 using cavities and shocks in the surrounding hot gas Reading the historical chronicle of activity of the SMBH in NGC5813 using cavities and shocks in the surrounding hot gas

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2468f&link_type=abstract

Chandra Proposal ID #09610492

Physics

Chandra Proposal Id #09610492

Scientific paper

We propose a deep observation of NGC5813 whose X-ray image shows three pairs of cavities and two shock rings. Combining this observation with the existing data, we can measure the gas temperature and density jumps at the shocks to derive the shock Mach numbers and outburst energies, determine the outburst history by measuring the spatial separation of cavities and shocks, and measure the energy output history of the SMBH by combining the inventory of bubbles and shocks with their ages and models of buoyancy and shock propagation. With its multiple cavities and shocks, NGC5813's X-ray atmosphere provides a rare opportunity to chronicle the activity of its supermassive black hole.

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