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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 2.

Posterior predictive checks on the velocity dispersion profiles for the FDM halo models compared with the kinematic observations, with the CDM halo models from Paper I shown for comparison. The red solid and orange dotted–dashed lines show the FDM halo models for the NFW and ﹩\alpha \beta \gamma ﹩ outer profiles. The dark blue dashed and cyan dotted lines show the CDM halo models for the NFW and ﹩\alpha \beta \gamma ﹩ profiles. The shaded regions cover the 16th through 84th percentiles of the distribution. We see that all four models do an adequate job of recovering the general trend of the kinematic data.

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