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Inferring Globular Cluster Initial Mass Function from Stellar Streams

  • Authors: Claire S. Ye, Raymond G. Carlberg

Claire S. Ye and Raymond G. Carlberg 2026 The Astrophysical Journal Letters 1007 .

  • Provider: AAS Journals

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.

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