Image Details
Caption: Figure 9.
The angular momentum as a function of mass for stellar streams (78 systems; A. Bonaca & A. M. Price-Whelan 2025) and globular clusters (165 systems; https://people.smp.uq.edu.au/HolgerBaumgardt/globular/) observed in the Milky Way. We exclude stellar streams with a dwarf galaxy progenitor. Filled triangles represent stellar streams at Galactocentric distance Dgc < 30 kpc and heliocentric distance Dhc > 3 kpc. The observed mass of each stellar stream is corrected by a multiplicity factor of 2 to account for the total underlying stream mass. Similarly, filled circles denote globular clusters within 30 kpc of the Galactic center.
© 2026. The Author(s). Published by the American Astronomical Society.