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Xi-Han Ji

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Open access Jun 2026

A Steep-extinction Quasi-stellar Object at z = 4.6: JWST Evidence for Abundant Small Dust Grains

The rapid accumulation of massive dust reservoirs in the early Universe remains a major challenge in astrophysics. While core-collapse supernovae can inject large dust grains (a ≳ 0.1 μm) on short timescales, explaining the total dust budgets in the early Universe likely requires efficient grain growth in the interstel...

Ming-Yu Li, Zheng Cai, R. Maiolino et al. · 1 citation

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