[1] Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
[2] Beijing Normal Univ, Adv Inst Nat Sci, Zhuhai 519087, Peoples R China
[3] Kunsan Natl Univ, Dept Phys, Kunsan 54150, South Korea
[4] Korea Inst Adv Study, Seoul 02455, South Korea
[5] Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
[6] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
[7] Univ Chinese Acad Sci, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China