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$\texttt{Mangrove}$: Learning Galaxy Properties from Merger Trees. (arXiv:2210.13473v1 [astro-ph.GA])
Oct. 26, 2022, 1:11 a.m. | Christian Kragh Jespersen, Miles Cranmer, Peter Melchior, Shirley Ho, Rachel S. Somerville, Austen Gabrielpillai
cs.LG updates on arXiv.org arxiv.org
Efficiently mapping baryonic properties onto dark matter is a major challenge
in astrophysics. Although semi-analytic models (SAMs) and hydrodynamical
simulations have made impressive advances in reproducing galaxy observables
across cosmologically significant volumes, these methods still require
significant computation times, representing a barrier to many applications.
Graph Neural Networks (GNNs) have recently proven to be the natural choice for
learning physical relations. Among the most inherently graph-like structures
found in astrophysics are the dark matter merger trees that encode the
evolution …
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