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A Jet–driven, Extreme High‐Velocity Outflow Powered by a Cold, Low‐Luminosity Protostar near NGC 2023
1999
Astrophysical Journal
We have discovered an extreme high-velocity bipolar CO outÑow in the vicinity of NGC 2023, with total outÑow velocities of D200 km s~1. At very high velocities this outÑow is jetlike with an opening angle ¹4¡, while it shows a separate outÑow lobe at low velocities. The outÑow is bipolar and exhibits a clear mirror symmetry, which suggests that the source powering the outÑow is episodic or precessing. The dynamical timescales for the outÑow are ¹3000 yr. We identify the source driving the CO
doi:10.1086/307367
fatcat:go62qozprjbhdel2h7bjhyy2ou