Planes of satellites, no longer in tension with LCDM

Abstract

The arrangement of dwarf galaxies in a thin plane surrounding the Milky Way has been thought to contradict the prevailing cosmological model of cold dark matter in the Universe. New work suggests that this arrangement may just be a temporary alignment, bringing our galaxy back into agreement with theoretical expectations once the radial distribution of satellites is taken into account.

Invited 'News and Views' contribution for Nature Astronomy on paper by Sawala et al. 2022 "The Milky Way's plane of satellites is consistent with ΛCDM"

References in corpus (6)

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Cited by in corpus (2)

• Efficient and accurate force replay in cosmological-baryonic simulations
• Subhalos are Anisotropically Distributed and Aligned with the Smooth Matter Distribution of Their Host Halos