1. Kyung Hee University, School of Space Research, Yongin-si, Republic of Korea
2. University of Washington, Department of Astronomy, Seattle, Washington, United States
3. Carnegie Institution for Science, Pasadena, California, United States
4. Max Planck Institute for Astronomy, Heidelberg, Germany
5. Konkuk University, Seoul, Republic of Korea
6. Korea Astronomy and Space Science Institute, Daejeon, Republic of Korea
7. The University of Texas at Austin, Department of Astronomy, Austin, Texas, United States