1. Department of Earth Science University of California Santa Barbara CA USA
2. Now at Department of Geosciences Pennsylvania State University University Park PA USA
3. Institut de Physique du Globe de Paris Paris France
4. Department of Earth and Planetary Science University of California Berkeley CA USA
5. Laboratoire LULI Ecole Polytechnique Palaiseau France
6. Geophysical Laboratory Carnegie Institution of Washington Washington DC USA
7. Now at Department of Earth and Planetary Sciences University of California Davis CA USA
8. Department of Earth and Planetary Sciences Harvard University Cambridge MA USA
9. Department of Geophysics and Planetary Sciences University of Science and Technology of China Hefei China
10. Department of Earth, Atmospheric, and Planetary Sciences Massachusetts Institute of Technology Cambridge MA USA
11. Bayerisches Geoinstitut University of Bayreuth Bayreuth Germany
12. School of Earth Sciences University of Melbourne Parkville Victoria Australia
13. Chaire de Physique de l'Intérieur de la Terre Collège de France Paris France
14. Department of Earth Sciences University College London London UK