1. School of Physics and Astronomy, University of Birmingham , Edgbaston B15 2TT, UK
2. Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Dr., Pasadena, CA 91109, USA
3. Centre for Extragalactic Astronomy, Department of Physics, Durham University , South Road, Durham DH1 3LE, UK
4. Institute for Computational Cosmology, Department of Physics, Durham University , South Road, Durham DH1 3LE, UK
5. Institute for Gravitational Wave Astronomy, University of Birmingham , Birmingham B15 2TT, UK
6. Department of Astronomy, University of Michigan , 1085 S. University Ave, Ann Arbor, MI 48109, USA
7. Univ Lyon, Univ Lyon1, Ens de Lyon, CNRS , Centre de Recherche Astrophysique de Lyon UMR5574, F-69230 Saint-Genis-Laval, France
8. Astrophysics Research Centre, University of KwaZulu-Natal , Westville Campus, Durban 4041, South Africa
9. School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal , Westville Campus, Durban 4041, South Africa