Star Clusters Triggered by GS242-03+37
Abstract
We explore the Milky Way supershell GS242-03+37. We argue that the observed HI distribution can be explained as an expanding structure about 100 Myr old powered with a modest energy released by an OB association. The formation of star clusters has been triggered less than 30 Myr ago when the ISM density in the supershell increased due to the galactic differential rotation. The observed age sequence of young star clusters is related to the evolution of the column density during the supershell expansion.
- Publication:
-
Origins: From the Protosun to the First Steps of Life
- Pub Date:
- 2020
- DOI:
- Bibcode:
- 2020IAUS..345..279P
- Keywords:
-
- ISM: structure;
- ISM: bubbles;
- Galaxy: disk;
- open clusters and associations: general