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   61026
   In the Orion observation (PV phase), we detected faint sources in the
   OMC 2--3 region. These sources are well correspondent with filament
   structure of 1.3 mm continuum emission. This wave length traces the
   densest region (Av$>$100mag) in a cloud, the detected objects are
   coincident with 'the younger protostars', i.e., the early phase in
   Class I, and Class 0. Our proposal is TO OBSERVE THIS REGION DEEPLY
   (100 ksec) and our goal is TO CONFIRM THE DETECTION OF SUCH AN
   EXTREMELY YOUNG PROTOSTARS.
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