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Spatially Resolved Stellar Kinematics of the Ultra-diffuse Galaxy Dragonfly 44. II. Constraints on Fuzzy Dark Matter

  • Authors: Asher Wasserman, Pieter van Dokkum, Aaron J. Romanowsky, Jean Brodie, Shany Danieli, Duncan A. Forbes, Roberto Abraham, Christopher Martin, Matt Matuszewski, Alexa Villaume, John Tamanas, and Stefano Profumo

2019 The Astrophysical Journal 885 155.

  • Provider: AAS Journals

Caption: Figure 8.

Posterior distribution of ﹩{M}_{200{\rm{c}}}﹩ and ﹩{m}_{22}\times {r}_{\mathrm{sol}}﹩ for Dragonfly 44 compared to the expected scaling relation. The violet line shows the functional relationship between halo mass and core size predicted by Schive et al. (2014a). The yellow × shows the inferred core size from dSph galaxies (Chen et al. 2017). There is a broad range of allowed core sizes, but the mode of the distribution is consistent with the expected scaling relation.

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