Iron whiskers on asteroid Itokawa indicate sulfide destruction by space weathering

The authors here investigate troilite (FeS) grains recovered from the regolith of asteroid Itokawa. Finding wide-spread occurrence of metallic iron whiskers, the authors suggest them to be a decomposition product formed through irradiation of the sulfide by energetic ions of the solar wind.

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Detalles Bibliográficos
Autores principales: Toru Matsumoto, Dennis Harries, Falko Langenhorst, Akira Miyake, Takaaki Noguchi
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2020
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Acceso en línea:https://doaj.org/article/506ccad09afa48ec8ed0c8c9db7b6413
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Descripción
Sumario:The authors here investigate troilite (FeS) grains recovered from the regolith of asteroid Itokawa. Finding wide-spread occurrence of metallic iron whiskers, the authors suggest them to be a decomposition product formed through irradiation of the sulfide by energetic ions of the solar wind.