Jungjoo Sohn(Department of Earth Science, Pusan National University/Astronomy Program, School of Earth and Environmental Sciences, Seoul National University/Infrared Astrophysics Group, Institute of Space and Astronautical Science)
H. B. Ann(Department of Earth Science, Pusan National University)
Soojong Pak(Astronomy Program, School of Earth and Environmental Sciences, Seoul National University)
H. M. Lee(Astronomy Program, School of Earth and Environmental Sciences, Seoul National University/Infrared Astrophysics Group, Institute of Space and Astronautical Science)