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| Paper: |
The Mass-to-Light Ratios of Galactic Globular Clusters |
| Volume: |
423, Galaxy Wars: Star Formation and Stellar Populations in Interacting Galaxies |
| Page: |
146 |
| Authors: |
Kruijssen, J. M. D.; Mieske, S. |
| Abstract: |
The observed mass-to-light (M/L) ratios of globular clusters (GCs) are on average ∼ 20% lower than expected from Simple Stellar Population (SSP) models, which only account for the effects of stellar evolution. We study the M/L ratio evolution of a sample of 24 Galactic GCs using parameterised cluster models. The dynamical evolution of GCs is included by accounting for their dissolution and by using a detailed description of the evolution of the stellar mass function. The ejection of low-mass stars leads to a decrease of M/L, which is found to explain the discrepancy between the observations and SSP models. |
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