Formation of the twin galactic starburst regions NGC 6357 and NGC 6334
Abstract
New CO J=1-0 observations with NANTEN and NANTEN2 reveal that extensive collisions between two molecular clouds at relative velocity of 15 km s-1 triggered the O star formation in the Galactic mini-starbursts NGC 6357 and NGC 6334. Correlated/anti-correlated gas distributions and intermediate velocity features between the two clouds lend support for the cloud-cloud collision scenario. The timescale of the collision and high-mass star formation is as short as less than 0.5 Myrs, suggesting rapid O star formation.
- Publication:
-
Formation, Evolution, and Survival of Massive Star Clusters
- Pub Date:
- March 2017
- DOI:
- Bibcode:
- 2017IAUS..316..173T
- Keywords:
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- ISM: clouds;
- ISM: molecules;
- ISM: kinematics and dynamics;
- stars: formation