Expanding bubbles in Orion A: [C _II] observations of M42, M43, and NGC 1977.

ABSTRACT:

Context

The Orion Molecular Cloud is the nearest massive-star forming region. Massive stars have profound effects on their environment due to their strong radiation fields and stellar winds. Stellar feedback is one of the most crucial cosmological parameters that determine the properties and evolution of the interstellar medium in galaxies.

Aims

We aim to understand the role that feedback by stellar winds and radiation play in the evolution of the interstellar medium. Velocity-resolved observations of the [C _II] 158μm fine-structure line allow us to study the kinematics of UV-illuminated gas. Here, we present a square-degree-sized map of [C _II] emission from the Orion Nebula complex at a spatial resolution of 16″ and high spectral resolution of 0

SUBMITTER: Pabst CHM 

PROVIDER: S-EPMC7116338 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature