We present the sensitivity calculation results for observing the Cosmic Infrared Background (CIRB) by the Multi-purpose IR Imaging System (MIRIS), which will be launched in 2010 as a main payload of the Science and Technology Satellite 3 (STSAT-3). MIRIS will observe in I ( 0.9∼1.2um) and H (1.2∼2.0um) band with a 4×4 degree field of view to obtain the large scale structure ( ∼3 degree) of the CIRB. With the given specifications of the MIRIS, our sensitivity calculation results show that the MIRIS has a detection limit of ∼9nWm−2sr−1 (I band) and ∼6nWm−2sr−1 (H band), which is appropriate to observe the large scale structure of CIRB.

• 이대희(한국천문연구원)
• 이성호(한국천문연구원)
• 한원용(한국천문연구원)
• 박장현(한국천문연구원)
• 남욱원(한국천문연구원)
• 진호(한국천문연구원)
• 육인수(한국천문연구원)
• 박영식(한국천문연구원)
• 박성준(한국천문연구원)
• 이형목(서울대학교)
• 박수종(경희대학교)
• TOSHIO MATSUMOTO(Institute of Space and Astronautical Science)
• ASANTHA COORAY(University of California)