Constraining the excitation conditions of the molecular gas in the most distant submillimetre galaxy at z=4.76

Details Constraining the excitation conditions of the molecular gas in the most distant submillimetre galaxy at z=4.76 Constraining the excitation conditions of the molecular gas in the most distant submillimetre galaxy at z=4.76

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atnf.prop.3374c&link_type=abstract

ATNF proposal C2089, Semester: October, 2010

Physics

Surveys And Studies Of Distant Galaxies, Atca

Scientific paper

We propose to use ATCA to measure CO(5-4) emission in the currently highest redshift submm-selected galaxy (SMG) known: LESS J033229 at z=4.755. Combined with our previous successful ATCA observations of the CO(2-1) transition in this SMG, we will be able to start building up the CO SED excitation ladder and so gain new insight on the excitation conditions of the molecular gas which is fuelling a massive burst of star formation at a time when the Universe was only 1 Gyr old. ATCA is currently the only available facility that can provide these data, giving us a sneak-preview of the capabilities of ALMA for studying the youngest galaxies in the very distant Universe.

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