Searching for Converging Flows of Atomic Gas onto a Molecular Cloud

• Published in: The Astrophysical journal Vol. 941; no. 1; pp. 62 - 69
• Main Authors: Heyer, Mark, Goldsmith, Paul F., Simon, Robert, Aladro, Rebeca, Ricken, Oliver
• Format: Journal Article
• Language: English
• Published: Philadelphia The American Astronomical Society 01.12.2022; IOP Publishing
• Subjects: Astrophysics; Brightness temperature; Cloud formation; Clouds; Cold neutral medium; Convergence; Deposition; Emission analysis; Emission spectra; Fine structure; Gas flow; Interstellar clouds; Interstellar gas; Interstellar matter; Interstellar medium; Interstellar phases; Line spectra; Molecular clouds; Molecular gas; Molecular structure; Neutral hydrogen clouds; Photodissociation; Photodissociation regions; Star formation; Ultraviolet radiation

We present new observations of [C ii ] 2 P 3/2 → 2 P 1/2 fine structure line emission from an isolated molecular cloud using the upGREAT instrument on board SOFIA. These data are analyzed together with archival CO J =1–0 and H i 21 cm emission spectra to investigate the role of converging atomic gas...