A 3D view of the outflow in the Orion Molecular Cloud 1 (OMC-1)

摘要: Context. Stars whose mass is an order of magnitude greater than the Sun play a prominent role in evolution galaxies, exploding as supernovae, triggering bursts star formation and spreading heavy elements about their host galaxies. A fundamental aspect creation outflow. The fast outflow emerging from region associated with massive Orion Molecular Cloud 1 (OMC-1), located behind Nebula, appears to have been set motion by explosive event. Aims. We study structure dynamics outflows OMC-1. combine radial velocity proper data for near-IR emission molecular hydrogen obtain first 3-dimensional (3D) OMC-1 Our work illustrates new diagnostic tool studies that will be exploited near future advent high spatial resolution spectro-imaging particular Atacama Large Millimeter Array (ALMA). Methods. used published velocities obtained shock-excited vibrational H2 v = 1−0 S(1) line at 2.122 μm GriF instrument on Canada-France-Hawaii Telescope, Apache Point Observatory, Anglo-Australian Subaru Telescope. Results. These give 3D ejecta yielding reconstruction outflows. This allows one view material different vantage points space giving considerable insight into geometry. analysis indicates ejection occurred <720 years ago distorted ring-like ∼15 �� (6000 AU) diameter centered proposed point close encounter stars BN, source I maybe also n. propose simple model involving curvature shock trajectories magnetic fields through which origin explosion center defined extrapolated motions n may brought coincidence.