Radiogenic heating of comet 67P/Churyumov-Gerasimenko and implications for its formation time - Sorbonne Université Access content directly
Conference Papers Year : 2017

Radiogenic heating of comet 67P/Churyumov-Gerasimenko and implications for its formation time

Jean-Jacques Berthelier
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Abstract

We investigate how heat generated by the radioactive decay of 26Al and 60Fe influences the formation of comet 67P/Churyumov-Gerasimenko, as a function of its accretion time and size of parent body. To fully preserve its volatile content, we find that either 67P/Churyumov-Gerasimenko’s formation was delayed between ∼2.2 and 7.7 Myr after that of Ca-Al-rich Inclusions (CAIs) in the protosolar nebula, depending on the primordial size of its parent body and the composition of the icy material considered.
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insu-04613127 , version 1 (15-06-2024)

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O Mousis, A Drouard, P Vernazza, J I Lunine, R Maggiolo, et al.. Radiogenic heating of comet 67P/Churyumov-Gerasimenko and implications for its formation time. European Planetary Science Congress 2017, Sep 2017, Riga, Latvia. pp.EPSC2017-317. ⟨insu-04613127⟩
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