NOAO >   Observing Info >   Approved Programs >   2014A-0509

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Proposal Information for 2014A-0509


PI: Janine Pforr, NOAO, pforr@noao.edu
Address: 950 N. Cherry Ave., Tucson, Arizona 85719, USA

CoI: Mark Dickinson, NOAO
CoI: Hanae Inami, NOAO
CoI: Jeyhan Kartaltepe, NOAO
CoI: Stephanie Juneau, CEA Saclay, France
CoI: Benjamin Weiner, University of Arizona
CoI: Harry Ferguson, STScI
CoI: Emanuele Daddi, CEA Saclay, France
CoI: David Elbaz, CEA Saclay, France
CoI: Mauro Giavalisco, University of Massachusetts, Amherst
CoI: Anton Koekemoer, STScI
CoI: Maurilio Pannella, CEA Saclay, France
CoI: Alexandra Pope, University of Massachusetts, Amherst
CoI: Paola Popesso, MPE Garching, Germany
CoI: Naveen Reddy, UC Riverside

Title: 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 \it majority of star-forming galaxies, including occasional boosting, quenching, and effects on the ISM/gas.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



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