Star Formation at Intermediate Red-shift

Details Star Formation at Intermediate Red-shift Star Formation at Intermediate Red-shift

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atnf.prop.1778b&link_type=abstract

ATNF proposal M319, Semester: October, 2008

Computer Science

Extragalactic, Mopra

Scientific paper

We have begun the first systematic study of the evolution in star formation efficiency at moderate redshifts (z = 0.2 - 0.6), when the universe is undergoing its precipitous decline in star formation rate together with a systematic shift in the dominant star-forming sites. Our search for CO(1-0) emission with the IRAM 30m of the 30 most IR-luminous Northern galaxies has resulted in 17 detections; the brightest of which are now being imaged with the PdBI array. The FIR-to-CO luminosity ratio is enhanced in our sample, following the increasing trend observed between local and high-z ultra-luminous starbursts. In view of the sparcity of targets detectable with current instrumentation we are requesting Mopra observing time to do a pioneering study of Southern sky targets in this red-shift range. Our study is particularly timely, with the upcoming capabilities of the ATCA with CABB and on longer timescales with ALMA. The Mopra pilot study enabled by our allocation in the previous semester has demonstrated the feasibility of our program, which we now request time to complete.

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