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Revealing the Structure and Internal Rotation of the Sagittarius Dwarf Spheroidal Galaxy with Gaia and Machine Learning

  • Authors: Andrés del Pino, Mark A. Fardal, Roeland P. van der Marel, Ewa L. Łokas, Cecilia Mateu, and Sangmo Tony Sohn

2021 The Astrophysical Journal 908 244.

  • Provider: AAS Journals

Caption: Figure 26.

The 3D renderings of the stellar density and kinematics of Sgr. The Cartesian grid is aligned with the galactocentric coordinates. The points of view are for an observer located at 5.2 kpc from the Sgr COM along the longest, intermediate, and shortest principal axes of inertia of Sgr, respectively. Black cones mark the error-weighted average motion of the stars within 3D Voronoi cells of ∼500 stars each. The rest of the markers coincide with those used in Figure 9. An interactive version of this figure can be found in the online journal and at https://www.stsci.edu/∼marel/hstpromo/Sagittarius_GC.html. Note that the interactive graphic appears in full when viewed with the current versions of the Chrome and Firefox web browsers. The stellar density may appear to be missing when viewed with the current Safari browser, which is due to a lack of webP support.

(An interactive version of this figure is available.)

An interactive version of this figure is available in the online journal.

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