1. Institute of Astronomy, and Astrophysics, Academia Sinica, Astronomy-Mathematics Building, AS/NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
2. Department of Physics & Institute of Astrophysics, National Taiwan University, Taipei 10617, Taiwan
3. Theoretical Astrophysics, Department of Earth & Space Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
4. Department of Physics & Astronomy, University of Nevada, Las Vegas, 4505 S. Maryland Pkwy, Las Vegas, NV 89154-4002, USA
5. Kavli IPMU (WPI), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan
6. Physics Department, Ben-Gurion University of the Negev, POB 653, Be’er Sheva 84105, Israel
7. Institute of Astronomy, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
8. National Optical Astronomy Observatory, 950 N Cherry Ave., Tucson, 85719 AZ, USA
9. Purple Mountain Observatory, Chinese Academy of Sciences, 8 Yuanhua Road, Nanjing 210034, China