Figure 3 from Crater 2: An Extremely Cold Dark Matter Halo

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Crater 2: An Extremely Cold Dark Matter Halo

Authors: Nelson Caldwell, Matthew G. Walker, Mario Mateo, Edward W. Olszewski, Sergey Koposov, Vasily Belokurov, Gabriel Torrealba, Alex Geringer-Sameth, and Christian I. Johnson

2017 The Astrophysical Journal 839 20.

Provider: AAS Journals

Caption: Figure 3.

Spectroscopically measured surface gravity (top), metallicity (middle), and velocity (bottom) vs. angular separation from Crater 2's center. Red (black) markers represent stars with posterior membership probability ﹩\geqslant 50 \% ﹩ (<50%). Histograms display 1D distributions, with posterior PDFs for the two populations (Crater 2 members and Milky Way foreground) of our mixture model overplotted.

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