1. Department of Astronomy, School of Physics and Astronomy, Shanghai Jiao Tong University , Shanghai 200240, China
2. Shanghai Key Laboratory for Particle Physics and Cosmology , Shanghai 200240, China
3. Waterloo Center for Astrophysics, University of Waterloo , Waterloo, ON N2L 3G1, Canada
4. Department of Physics and Astronomy, University of Waterloo , Waterloo, ON N2L 3G1, Canada
5. Institute of Cosmology and Gravitation, University of Portsmouth , Burnaby Road, Portsmouth PO1 3FX, UK
6. Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory , Shanghai 200030, China