Affiliation: | 1. J. I. Holcomb Observatory Butler University, 46208, Indianapolis, IN 2. Department of Astronomy, Ohio State University, 43210-1106, Columbus, OH 3. Department of Physics and Astronomy, Clemson University, 29634-1911, Clemson, SC 4. Department of Math and Sciences, U. So. Carolina at Lancaster, 29720, Lancaster, SC, USA
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