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| Paper: |
Star formation - A theoretician's view |
| Volume: |
20, Frontiers of Stellar Evolution: Celebrating the 50th Anniversary of McDonald Observatory (1939-1989) |
| Page: |
23 |
| Authors: |
Shu, Frank H. |
| Abstract: |
The present evaluation of the hypothesis that the birth of a sunlike star occurs in four stages, with a critical bipolar outflow phase, notes that observed molecular outflows cannot be initiated from circumstellar disks and must instead represent swept-up shells of gas that are driven by strong protostellar winds. The star can resolve its growing angular-momentum problem only by rejecting a fraction of the material that is fed through the disk in a powerful, magnetocentrifugally-driven wind. Empirical properties measured for well-collimated outflow sources can be accounted for by the interaction of this anisotropic wind with the ambient molecular cloud core. |
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