[1
]Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville,
FL 32611-2055, USA
[2
]Department of Mathematics and Physics, College of Life and Physical Sciences, Tennessee
State University, Boswell Science Hall, Nashville, TN 37209, USA
[3
]Tennessee State University, Center of Excellence in Information Systems, Nashville,
TN 37203, USA
[4
]Instituto de Astrofísica de Canarias, C/Vía Láctea S/N, E-38200 La Laguna, Spain
[5
]Departamento de Astrofísica, Universidad de La Laguna, E-38205 La Laguna, Tenerife,
Spain
[6
]Department of Physics & Astronomy, Vanderbilt University, Nashville, TN 37235 USA
[7
]Astronomy Department, University of Washington, Box 951580, Seattle, WA 98195, USA
[8
]Steward Observatory, The University of Arizona, Tucson, AZ 85719, USA