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Uncovering dark matter density profiles in dwarf galaxies with graph neural networks. (arXiv:2208.12825v1 [astro-ph.CO])
cs.LG updates on arXiv.org arxiv.org
Dwarf galaxies are small, dark matter-dominated galaxies, some of which are
embedded within the Milky Way. Their lack of baryonic matter (e.g., stars and
gas) makes them perfect test beds for probing the properties of dark matter --
understanding the spatial dark matter distribution in these systems can be used
to constrain microphysical dark matter interactions that influence the
formation and evolution of structures in our Universe. We introduce a new
method that leverages simulation-based inference and graph-based machine
learning …
arxiv astro dark matter graph graph neural networks networks neural networks profiles