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Creators/Authors contains: "Wang 王, Xilu 夕露"

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  1. ; ; ; ; ; ; ; ; (, The Astrophysical Journal)
    Abstract 244Pu has recently been discovered in deep-sea deposits spanning the past 10 Myr, a period that includes two60Fe pulses from nearby supernovae.244Pu is among the heaviestr-process products, and we consider whether it was created in supernovae, which is disfavored by nucleosynthesis simulations, or in an earlier kilonova event that seeded the nearby interstellar medium with244Pu that was subsequently swept up by the supernova debris. We discuss how these possibilities can be probed by measuring244Pu and otherr-process radioisotopes such as129I and182Hf, both in lunar regolith samples returned to Earth by missions such as Chang’e and Artemis, and in deep-sea deposits. 
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