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| Paper: |
On the Triggering Mechanisms of Bright Submillimeter Galaxies |
| Volume: |
499, Revolution in Astronomy with ALMA: The Third Year |
| Page: |
13 |
| Authors: |
Chen, C.-C.; ALESS and ALMA-S2CLS consortia |
| Abstract: |
The understanding of the physical processes that cause the extreme star formation in bright submillimeter galaxies provides essential constraints to models of galaxy formation and evolution. The outstanding issue of whether the high star formation rate of up to 1000 M☉ yr-1 in bright submillimeter galaxies is triggered by rapidly evolving major merger events, or a consequence of violent disk instability, is still under debated. Here I present recent work on the measurements of size and morphology of the stellar distributions on a sample of ALMA-detected SMGs in ECDF-S field. Combined with the measurements of the size and morphology of the dust distributions, our results favour the scenario that most bright submillimeter galaxies are going through the processes of major merger. |
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