Constraints on the in situ and ex situ stellar masses in nearby galaxies obtained with artificial intelligence
Nature Astronomy, Published online: 22 July 2024; doi:10.1038/s41550-024-02327-3
The contribution of accreted stars to a galaxy’s total stellar mass is hard to determine directly from observations. Here constraints are placed on the ex situ stellar mass for ~10,000 galaxies using a cosmological simulation and machine learning.
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