Macroscopic turbulence in molecular clouds
Abstract
The hypothesis that outflows driven by pre-main-sequence stellar winds are driving shells that fragment and energize molecular clouds, sustaining them so that they do not undergo free-fall collapse, leads to predicted correlations between line width, hydrogen density, and clump scale. Both the correlation scaling and normalization are in good accord with the correlations observed over a wide range of cloud scales. Implications are drawn for the efficiency of star formation and for cloud lifetimes.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- May 1985
- DOI:
- 10.1086/184475
- Bibcode:
- 1985ApJ...292L..71S
- Keywords:
-
- Molecular Clouds;
- Pre-Main Sequence Stars;
- Stellar Evolution;
- Stellar Winds;
- Computational Astrophysics;
- Protostars;
- Spectral Line Width;
- Stellar Mass Ejection;
- T Tauri Stars;
- Turbulence;
- Astrophysics