1. Ritter Astrophysical Research Center, Department of Physics & Astronomy , , 2801 W. Bancroft Street, Toledo, OH 43606 , USA
2. University of Toledo , , 2801 W. Bancroft Street, Toledo, OH 43606 , USA
3. Department of Physics & Astronomy , , Lewisburg, PA 17837 , USA
4. Bucknell University , , Lewisburg, PA 17837 , USA
5. Department of Astrophysics , , Central Park West at 79th Street, NY 10024 , USA
6. American Museum of Natural History , , Central Park West at 79th Street, NY 10024 , USA
7. Lunar & Planetary Laboratory , , Tucson, AZ 85721 , USA
8. University of Arizona , , Tucson, AZ 85721 , USA
9. Department of Astronomy & Astrophysics , , Santa Cruz, CA 95064 , USA
10. University of California , , Santa Cruz, CA 95064 , USA