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Paper: Multi-Field Imaging of NGC 1333 with BIMA
Volume: 217, Imaging at Radio Through Submillimeter Wavelengths
Page: 354
Authors: Plambeck, R. L.; Engargiola, G.
Abstract: Interferometers are well-suited for identifying outflows in molecular clouds because they filter out the extended emission from quiescent gas but are sensitive to localized high velocity gas in the outflow lobes. Surveys of outflows allow one to identify deeply embedded Class 0 protostars, to estimate the energy injected into the interstellar medium, and to correlate outflow properties with the ages and luminosities of the driving sources. To test the feasibility of mapping large regions of molecular clouds interferometrically, we used BIMA to survey the 1--0 CO line toward a 5' × 8' patch of NGC 1333, and a 10' × 15' patch of the northern Orion ridge. BIMA is well-suited for mosaiced observations because its large primary beam allows one to map sizable regions with a manageable number of pointing centers. Furthermore, for a mosaiced image the sensitivity is proportional to ND, rather than to the total collecting area ND2, where N is the number of antennas and D is the antenna diameter. In NGC 1333 the CO line wings originate primarily from 4 large outflows. Toward the Orion ridge several compact outflows can be distinguished amidst a tangle of high velocity filaments.
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