This presentation will discuss new observations, modeling, and interpretations of the Orion Nebula, focusing on the region in front of θ1 Ori C (Orion's Veil), the region between Ori C and the Main Ionization Front, and the Orion-S star forming region. Recent high resolution spectra of optical emission lines along with imaging in the [C II] 158 micron line show there are new velocity systems associated with each environment. Photoionization models of these velocity systems attempt to determine the location of each velocity component relative to the Trapezium Cluster, and the interaction of the components with the Veil, Orion-S, and the MIF. We will also discuss the physical mechanisms driving the velocity components, its relationship to the hot central cavity created by θ1 Ori C's stellar wind, and their relationship with a recently discovered expanding shell of material covering most of the Extended Orion Nebula.
American Astronomical Society Meeting Abstracts #235
- Pub Date:
- January 2020