NOAO >   Observing Info >   Approved Programs >   2011A-0048

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Proposal Information for 2011A-0048


PI: Arlo U. Landolt, Louisiana State University, landolt@baton.phys.lsu.edu
Address: Dept. of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001, U.S.A.

CoI: James L. Clem, Louisiana State University

Title: Faint UBVRI Photometric Standard Star fields: KPNO

Abstract: Telescope time is being requested for continued enhancement and development of broad-band (UBVRI) CCD photometric standard stars. Use of such standard stars permits the combination and inter-comparison of the brightness and color measurements of celestial phenomena made by different investigators with different sets of equipment, on land or in space. The continued efforts at improving the broad-band UBVRI photometric system is important so that all astronomers using and needing photometric results can be confident of the zero points, transformations, and systematics of their results. This work also will allow the intercomparison of UBVRI and SDSS photometry in common fields. The KPNO observing will take advantage of the availability of a larger telescope, the 2.1-m, than is available at CTIO. The stars and fields upon which observational work will continue are distributed around the celestial equator, as well as in a zone centered at +45 degrees declination. Standard star publications by the author are some of the most heavily referenced in astronomy. There is no doubt but that the photometric sequences being established via this observing proposal also will see extensive use.


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