NOAO >   Observing Info >   Approved Programs >   2015A-0409

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Program Information for 2015A-0409


PI: Eileen Friel, Indiana U., efriel@indiana.edu
Address: Astronomy Department, 727 E. 3rd Street, Bloomington, IN 47405 USA

CoI: Jeffrey Gerber, Indiana U.
CoI: Michael M Briley, Appalachian State U.
CoI: Enrico Vesperini, Indiana U.
CoI: Katherine L Rhode, Indiana U.
CoI: Catherine A Pilachowski, Indiana U.

Title: WIYN Indiana Northern Globular Cluster Survey (WINGS)

Abstract: Globular clusters in the Milky Way are not simple stellar populations, but rather contain the products of multiple epochs of star formation. The discovery of multiple stellar populations in globular clusters, as revealed by both photometric and spectroscopic studies, has raised fundamental questions concerning all aspects of their formation and dynamical evolution. Accurately measuring the properties of Milky Way globular clusters - such as their luminosities, colors, surface brightness profiles, structural parameters, chemical abundances, kinematic properties, and stellar populations - is necessary to address these questions. With preliminary reduction of spectra collected in August 2014 showing promise, we plan to build on the pilot study to carry out a spectroscopic survey of a sample of Milky Way Globular Clusters in conjunction with an imaging survey that will thoroughly quantify the properties of clusters and their stellar populations (WINGS). This observing run will focus on mapping the behavior of CN band strengths which are known to differ between globular cluster generations using low resolution spectroscopic observations of large samples of evolved stars with Hydra.

Program Type: ITAC

Scheduled Nights:
Run 1 (2015A):  WIYN/HYDR -- 4n on Jun 08 - Jun 11 2015


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 >   2015A-0409

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