NOAO >   Observing Info >   Approved Programs >   2007B-0463

Small NOAO Logo

Proposal Information for 2007B-0463


PI: Daniel D. Kelson, Carnegie Observatories, kelson@ociw.edu
Address: 813 Santa Barbara Street, Pasadena, CA 91101, USA

CoI: Patrick J. McCarthy, Carnegie Observatories
CoI: Haojing Yan, Carnegie Observatories
CoI: Alan Dressler, Carnegie Observatories
CoI: John S. Mulchaey, Carnegie Observatories
CoI: Augustus A. Oemler, Carnegie Observatories
CoI: Stephen Shectman, Carnegie Observatories

Title: The Carnegie High-z Infrared-selected Magellan Prism Survey: 500,000 Mass-selected Galaxies to z=1.5

Abstract: We request observing time with NEWFIRM in support of a wide-area deep spectroscopic survey of galaxy and structure evolution from z=1.5 to the present. Using a low-dispersion prism and upgraded detectors in the IMACS spectrograph on the 6.5m Magellan telescope we will obtain redshifts, spectral classifications, and emission-line strengths for 500,000 galaxies in three fields over three years. Our targets are selected at 3.6(mu) m from Spitzer/IRAC legacy fields. Medium deep, but large area J and K_s imaging is critical for the analysis and NEWFIRM is the only instrument in the US system that can provide the necessary coverage. We request 6 nights to begin work on our 2-hour equatorial field. We aim to reach 10-sigma depths of J=21.5 mag and K_s=19.5 mag (Vega), allowing us to reach M^*/3 at z=0.8 and to M^* at z=1.3. We waive all proprietary rights and will release our data via our own website, or via the NOAO science archive. These data will allow us, for example, to accurately determine the evolving galaxy mass function, the evolution of the red sequence, and probe the dependence of star formation and mass evolution on local density.


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



NOAO >   Observing Info >   Approved Programs >   2007B-0463

noaoprop-help@noao.edu

Small NOAO Logo