1. Heidelberg Institute for Theoretical Studies (HITS), Schloss-Wolfsbrunnenweg 35, D-69118 Heidelberg, Germany
2. Instituto de Astrofísica, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile
3. Max Planck Institute for Gravitational Physics, Albert Einstein Institute (AEI), Am Mülenberg 1, D-4476 Potsdam-Golm, Germany
4. School of Physics and Astronomy and Institute of Gravitational Wave Astronomy, University of Birmingham, Edgbaston B15 2TT, UK
5. Institute of Space Sciences (ICE, CSIC) and Institut d’Estudis Espacials de Catalunya (IEEC), Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, Spain
6. Institute of Applied Mathematics, Academy of Mathematics and Systems Science, CAS, Beijing 100190, China
7. Kavli Institute for Astronomy and Astrophysics, Beijing 100871, China
8. Zentrum für Astronomie und Astrophysik, TU Berlin, Hardenbergstraße 36, D-10623 Berlin, Germany
9. Max Planck Institute für extraterrestriche Physik (MPE), D-85748 Garching, Germany