Figure 3 from Initial Mass Function Variability (or Not) among Low-velocity Dispersion, Compact Stellar Systems

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Initial Mass Function Variability (or Not) among Low-velocity Dispersion, Compact Stellar Systems

Authors: Alexa Villaume, Jean Brodie, Charlie Conroy, Aaron J. Romanowsky, and Pieter van Dokkum

2017 The Astrophysical Journal Letters 850 L14.

Provider: AAS Journals

Caption: Figure 3.

IMF mismatch parameter plotted against [Fe/H] (left), [Mg/Fe], (middle), and σ (right) for the two-component power-law IMF. Values shown are for M59-UCD3 (red squares), the M31 GCs (purple circles), and M32 (green triangles). We show the full sample of ETG local values from van Dokkum et al. (2017; open gray circles).

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