Merger-Induced X-ray Emission in the Superantennae

Details Merger-Induced X-ray Emission in the Superantennae Merger-Induced X-ray Emission in the Superantennae

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2678p&link_type=abstract

Chandra proposal ID #10610708

Physics

Scientific paper

We propose a 75 ksec Chandra exposure of one of the brightest nearby ULIRGs: the SuperAntennae. Previous observations revealed that this ULIRG harbors both a powerful starburst and a high-luminosity AGN. Suzaku and XMM-Newton spectra show that both neutral and ionized Fe-K lines are present. An exotic possibility is that some or all of the ionized Fe-K emission is due to the starburst. Here we propose to investigate this diffuse emission and constrain the contributions of the starburst and the AGN. These data will also give the strongest constraints to date for X-ray emission from the secondary nucleus, indicating to what extent a binary AGN may be present. These will provide new constraints for studying the impact of mergers and outflows on galaxy evolution.

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