CO content of protocluster Radio-Galaxies in the Early Universe: a CABB study

Details CO content of protocluster Radio-Galaxies in the Early Universe: a CABB study CO content of protocluster Radio-Galaxies in the Early Universe: a CABB study

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atnf.prop.3445e&link_type=abstract

ATNF proposal C2052, Semester: October, 2010

Physics

Surveys And Studies Of Distant Galaxies, Atca

Scientific paper

Following a successful pilot-project, we propose a systematic study of large-scale molecular gas in high-z radio galaxies (HzRGs) and their surrounding protoclusters. The wide-band CABB correlator and unique 7mm system at the ATCA allows -- for the first time -- to reliably detect and spatially map the ground-transition of the low-density molecular CO gas (a crucial diagnostic for the total molecular hydrogen content) in these massive proto-cluster systems. We propose to map CO(1-0) in an unbiased sample of 13 HzRGs for which Spitzer and HST data are available, allowing us to study the physical relation between the overall CO content and star formation/galaxy assembly processes in the early Universe. For the OCT2010 semester, we request night-time observations of two of our sample sources, with the project continuing in the winter of APR2011.

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