Do Ulig's Drive Hot Galactic Winds?

Details Do Ulig's Drive Hot Galactic Winds? Do Ulig's Drive Hot Galactic Winds?

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1250m&link_type=abstract

Chandra Proposal ID #04600879

Physics

Chandra Proposal Id #04600879

Scientific paper

Ultraluminous infrared galaxies (ULIGs) are signposts of the galaxy-galaxy mergers which underlie current models of galaxy assembly. These dusty environments hide the largest starbursts and are thought to be the birthplace of elliptical galaxies and quasars. The ULIG phase is brief, however, and we would like to understand how the obscuring dust and gas are removed. Half of the 40 ULIGs in our IR-flux-limited sample show evidence for cold, outflowing gas in deep Keck~II spectra. Only one of these is an approved Chandra target, so we request observations of the four ULIGs with the strongest galactic winds. We will detect (and spatially resolve) the thermal X-ray emission from the hot winds in these systems if they exist.

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