NOAO >   Observing Info >   Approved Programs >   2007A-0124

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Proposal Information for 2007A-0124


PI: Imants Platais, Johns Hopkins University, imants@pha.jhu.edu
Address: Physics Department, 3400 N. Charles Street, Baltimore, MD 21218, USA

CoI: Stanislav G. Djorgovski, California Institute of Technology
CoI: Alan Fey, US Naval Observatory
CoI: Zeljko Ivezic, University of Washington
CoI: Kenneth Mighell, NOAO
CoI: Armin Rest, NOAO
CoI: Rosemary Wyse, Johns Hopkins University
CoI: Norbert Zacharias, US Naval Observatory

Title: Deep Astrometric Standards (DAS)

Abstract: The advent of next generation imaging telescopes - instruments with wide fields and huge Gigapixel cameras - will soon create a critical need for deep and precise reference frames for astrometric calibrations. The Deep Astrometric Standards (DAS) program aims to establish such a frame by providing astrometry at the 5-10 mas accuracy level to the depth of an equivalent of V=25. The available datasets of positions, proper motions of faint stars, and g,i photometry will enable us to address fundamental questions of galactic disk formation and evolution, stellar buildup and mass assembly via merger events. The DAS images and catalogs will be an example of the type of datasets that large survey telescopes will output near the Galactic plane and can be used to design and test the data reduction pipeline. We propose to observe the last remaining DAS field in Ophiuchus.


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 >   2007A-0124

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