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Where Has All the R-process Gone? Timescales for Gamma-Ray Burst Kilonovae to Enrich Their Host Galaxies

  • Authors: Anya E. Nugent, Alexander P. Ji, Wen-fai Fong, Hilay Shah, Freeke van de Voort

Anya E. Nugent et al 2025 The Astrophysical Journal 982 .

  • Provider: AAS Journals

Caption: Figure 4.

The same as Figure 3, but for the r-process enrichment timescale, which is the minimum of the cooling or diffusion timescale. We find that both the sample of KNe and sample of short GRBs have significant enrichment timescales, on order of a ≈100 Myr, compared to the minimum expected delay time for NS mergers (≈10–200 Myr).

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