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| Paper: |
A Massive, Prestellar Clump Hosting no High-Mass Cores |
| Volume: |
499, Revolution in Astronomy with ALMA: The Third Year |
| Page: |
245 |
| Authors: |
Sanhueza, P.; Jackson, J. M.; Zhang, Q.; Foster, J.; Guzmán, A. |
| Abstract: |
We observed a high-mass, prestellar clump in dust continuum with SMA (3.5″) and in NH3 line emission with JVLA (2″). We find no core with sufficient mass to form high-mass stars at the current evolutionary stage. In order to form high-mass stars, the embedded cores need to accrete a significant amount of mass over time which is consistent with some models of high-mass star formation. We also find that the gas in the cores is transonic or mildly supersonic. The embedded cores are sub-virialized, which is inconsistent with some models of high-mass star formation unless strong magnetic fields of ∼1 mG are present. |
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