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Paper: Young Protostars and Inward Motions in Low-Mass Dense Cores
Volume: 132, Star Formation with the Infrared Space Observatory (ISO)
Page: 173
Authors: Myers, P. C.; Mardones, D.
Abstract: We present ISOCAM observations of multiple star formation in low-mass dense cores, and recent evidence for infall motions in four types of object: a sample of 47 class 0 and class I protostars, the environment of a protostar in an isolated, thermally supported dense core (L1527), the environment of a protostar in a turbulent dense core associated with a small stellar group (L1251B), and a thermally supported, low-mass starless core (L1544). The survey sample shows that class 0 and not class I sources have significant evidence for infall motions. The mapping studies show evidence for infall asymmetry extended over 0.03 - 0.1 pc. In L1544 the large spatial extent and the absence of a point source of infrared luminosity together appear inconsistent with the well-known "inside-out" collapse model.
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