1. Department of Physics, McGill University , 3600 University Street, Montréal QC H3A 2T8, Canada
2. McGill Space Institute, McGill University , 3550 University Street, Montréal QC H3A 2A7, Canada
3. Cahill Center for Astronomy and Astrophysics, California Institute of Technology , 1216 E California Blvd, Pasadena, CA 91125, USA
4. Department of Physics, Villanova University , Villanova, PA 19085, USA
5. Department of Physics, National Changhua University of Education , Changhua 50007, Taiwan
6. Physics & Astronomy, University of Southampton , Southampton, Hampshire SO17 1BJ, UK
7. International Centre for Radio Astronomy Research, Curtin University , GPO Box U1987, Perth, WA 6845, Australia
8. Department of Natural Sciences, University of Michigan-Dearborn , 4901 Evergreen Road, Dearborn, MI, 48128, USA
9. Department of Physics & Astronomy , Dartmouth College, 6127 Wilder Laboratory, Hanover, NH 03755, USA
10. Department of Astronomy and Astrophysics, The Pennsylvania State University , University Park, PA 16802, USA