Sibaek Yi(Department of Astronomy & Space Science, Kyung Hee University, Yongin 17104, Korea) | 이시백
Gwangson Choe(Department of Astronomy & Space Science, Kyung Hee University, Yongin 17104, Korea, School of Space Research, Kyung Hee University, Yongin 17104, Korea) | 최광선