Simulations show negative metallicity gradients in all low-mass galaxies, U-shaped age profiles in most, and halo metallicity dispersion tied to the infall time of the dominant satellite.
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astro-ph.GA 2years
2025 2verdicts
UNVERDICTED 2representative citing papers
Stellar halos act as transition regions between bright central galaxies and intracluster light, with strong mass correlations, similar colors that redden over time, and a shrinking metallicity gap from 0.4 dex at z=2 to 0.1 dex today.
citing papers explorer
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Age and metallicity of low-mass galaxies: from their centres to their stellar halos
Simulations show negative metallicity gradients in all low-mass galaxies, U-shaped age profiles in most, and halo metallicity dispersion tied to the infall time of the dominant satellite.
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Stellar halos of bright central galaxies II: Scaling relations, colors and metallicity evolution with redshift
Stellar halos act as transition regions between bright central galaxies and intracluster light, with strong mass correlations, similar colors that redden over time, and a shrinking metallicity gap from 0.4 dex at z=2 to 0.1 dex today.