SIMBAD references

2017ApJ...850...23B - Astrophys. J., 850, 23-23 (2017/November-3)

GMC collisions as triggers of star formation. V. Observational signatures.

BISBAS T.G., TANAKA K.E.I., TAN J.C., WU B. and NAKAMURA F.

Abstract (from CDS):

We present calculations of molecular, atomic, and ionic line emission from simulations of giant molecular cloud (GMC) collisions. We post-process snapshots of the magnetohydrodynamical simulations presented in an earlier paper in this series by Wu et al. of colliding and non-colliding GMCs. Using photodissociation region (PDR) chemistry and radiative transfer, we calculate the level populations and emission properties of the transitions of 12CO J = 1-0, [C I] 3P13P0 at 609 µm, [C II] 158 µm, and [O I] 3P13P0 at 63 µm. From emission maps of integrated intensity and position-velocity diagrams, we find that fine-structure lines, particularly [C II] 158 µm, can be used as a diagnostic tracer for cloud-cloud collision activity. These results hold even in more evolved systems in which the collision signature in molecular lines has been diminished.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): ISM: clouds - ISM: kinematics and dynamics - ISM: lines and bands - ISM: magnetic fields - ISM: structure - methods: numerical - methods: numerical

Simbad objects: 8

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2020.01.24-09:34:53

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