A GMOS spectroscopy survey of Herschel sources in the CANDELS COSMOS field
Abstract
The combination of CANDELS deep near-IR and optical HST imaging, deep Herschel photometry and vast amounts of ancillary data available highlight the 5 CANDELS fields as the best photometrically observed areas in the sky. However, relative to the GOODS fields, the COSMOS field lacks spectroscopic coverage, in particular of the Herschel- detected galaxies. While the full 2 deg^2 COSMOS field has > 20000 spectroscopic redshifts (only a fraction of which have been publicly released to date), only a few hundred of those (and only ~ 300 from the zCOSMOS-10K data release) fall within the 0.056 deg^2 COSMOS- CANDELS area. By contrast, each of the GOODS fields (each 0.044 deg^2) has 3000-4000 published redshifts. We propose to rectify this with a GEMINI/GMOS spectroscopic survey on ~350 Herschel- selected galaxies in the CANDELS COSMOS field and increase the pool of galaxies with CANDELS HST+Herschel imaging that are observable with ALMA by a factor of 2. Redshifts and spectral measurements will enhance the legacy value of the deepest HST + Herschel data, and will also allow us to study environmental effects as well as to address fundamental questions about what controls star formation in the majority of star-forming galaxies, including occasional boosting, quenching, and effects on the ISM/gas.
- Publication:
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NOAO Proposal
- Pub Date:
- February 2014
- Bibcode:
- 2014noao.prop..509P