Deep Near-Infrared Observations and Identifications of Chandra Sources in Orion Molecular Clouds 2 and 3
作者： Masahiro Tsujimoto , Katsuji Koyama , Naoto Kobayashi , Miwa Goto , Yohko Tsuboi
DOI: 10.1086/346277
关键词:
摘要: We conducted deep near-infrared (NIR) imaging observations of Orion molecular clouds 2 and 3 using the Quick Infrared Camera on 88 inch (2.2 m) telescope University Hawaii. Our purposes were (1) to generate a comprehensive NIR source catalog these star-forming (2) identify counterpart Chandra X-ray sources that have no in Two Micron All Sky Survey (2MASS) catalog. J-, H-, K-band are ~2 mag deeper than those 2MASS match current observation well. detected 1448 sources, for which we derived position, magnitude, counterpart. Using this catalog, identified ~42% unidentified sources. The nature discussed their colors spatial distributions, dozen protostar brown dwarf candidates identified.
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