机译:Ruprecht 147: The oldest nearby open cluster as a new benchmark for stellar astrophysics
Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802, United States;
Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, United States;
Department of Astronomy, Yale University, New Haven, CT 06511, United StatesDepartment of Astrophysics, California Institute of Technology, Pasadena, CA 91125, United States;
open clusters and associations: general; open clusters and associations: individual (Ruprecht 147);