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