Jets from young stars |
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Authors: | John Bally |
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Affiliation: | (1) Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80309, USA |
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Abstract: | Most stars produce spectacular jets during their formation. There are thousands of young stars within 500 pc of the Sun and many power jets. Thus protostellar jets may be the most common type of collimated astrophysical outflow. Shocks powered by outflows excite many emission lines, exhibit a rich variety of structure, and motions with velocities ranging from 50 to over 500 km s−1. Due to their relative proximity, proper motions and structural changes can be observed in less than a year. I review the general properties of protostellar jets, summarize some results from recent narrow-band imaging surveys of entire clouds, discuss irradiated jets, and end with some comments concerning outflows from high-mass young stellar objects. Protostellar outflows are ideal laboratories for the exploration of the jet physics. |
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Keywords: | Jets: general Jets: protostellar Jets: irradiated Jets: individual (HH 212, HH 444, HH 514, HH 540, HH 878) |
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