1. Physics Department, University of Vermont , Burlington, VT 05405, USA
2. Anton Pannekoek Institute for Astronomy, University of Amsterdam , Science Park 904, Amsterdam 1098 XH, Netherlands
3. Department of Physics and Astronomy, West Virginia University , PO Box 6315, Morgantown, WV 26505, USA
4. Center for Gravitational Waves and Cosmology, West Virginia University , Morgantown, WV 26505, USA
5. Arecibo Observatory , bo. La Esperanza, P.P. Box 53995, Arecibo, 0612, Puerto Rico