The spatial location of OBP-near and Briceño-1, overlaid on a 3D spatial map of interstellar dust (Leike et al. 2020). As apparent in the top-down X–Y view (middle panel), the OBP and Briceño-1 groups lie at the center of a dust shell. The stars’ sizes indicate their probability to be group members assigned by SNN. An interactive version of this figure is available here or in the online version of the published article. The 3D dust visualization will fail to render in Safari browser versions dating before MacOS Big Sur owing to the lack of webp format support. In order to display dust, open the visualization in the Chrome, Firefox, or Edge browser.

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