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Estimating Accretion Times of Halo Substructures in the Milky Way

Authors: Hefan Li, Masashi Chiba, Xiang-Xiang Xue, Gang Zhao

Hefan Li et al 2026 The Astronomical Journal 171 .

Provider: AAS Journals

Caption: Figure 3.

Distributions of the uncertainties in r- and ϕ-direction orbital frequencies for the member stars of the six substructures, with each substructure shown in a different color and marker. The dashed line indicates the 1:1 relation.

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