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Paper: |
The L1617 and L1622 Cometary Clouds in Orion |
Monograph: |
4, Handbook of Star Forming Regions: Volume I, The Northern Sky |
Page: |
782 |
Authors: |
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Abstract: |
The molecular cloud complex encompassing the cometary clouds L1617 and L1622 is located just outside of Barnard’s Loop in Orion. It lies to the northeast of the Orion Nebula Cluster at a projected distance of 60 pc. The two clouds have radial velocities that differ by about 10 km/s, suggesting that they are not physically associated. Both clouds show evidence for recent, limited low-mass star formation. In L1617 one finds the two Class I sources responsible for the HH 111 giant jet complex and for the HH 110 flow, which may have resulted from a flow being deflected by a cloud. L1622 harbors at least 30 young stellar objects, including 8 protostars, many of which have only recently been identified by Spitzer Space Telescope observations. |
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