Orion ' s Bar : Physical Conditions Across the Definitive H + / H 0 / H 2 Interface

Previous work has shown the Orion Bar to be an interface between ionized and molecular gas, viewed roughly edge-on, which is excited by the light from the Trapezium cluster. Much of the emission from any star-forming region will originate from such interfaces, so the Bar serves as a foundation test of any emission model. Here we combine X-ray, optical… CONTINUE READING