Impact sculpting of the early martian atmosphere

Oliver Shorttle, Homa Saeidfirozeh, Paul Rimmer, Vojtĕch Laitl, Petr Kubelík, Lukáš Petera, Martin Ferus
{"title":"Impact sculpting of the early martian atmosphere","authors":"Oliver Shorttle, Homa Saeidfirozeh, Paul Rimmer, Vojtĕch Laitl, Petr Kubelík, Lukáš Petera, Martin Ferus","doi":"arxiv-2409.07876","DOIUrl":null,"url":null,"abstract":"Intense bombardment of solar system planets in the immediate aftermath of\nprotoplanetary disk dissipation has played a key role in their atmospheric\nevolution. During this epoch, energetic collisions will have removed\nsignificant masses of gas from rocky planet atmospheres. Noble gases are\npowerful tracers of this early atmospheric history, xenon in particular, which\non Mars and Earth shows significant depletions and isotopic fractionations\nrelative to the lighter noble gasses. To evaluate the effect of impacts on the\nloss and fractionation of xenon, we measure its ionization and recombination\nefficiency by laser shock and apply these constraints to model impact-driven\natmospheric escape on Mars. We demonstrate that impact bombardment within the\nfirst $200$ to $300\\,\\text{Myr}$ of solar system history generates the observed\nXe depletion and isotope fractionation of the modern martian atmosphere. This\nprocess may also explain the Xe depletion recorded in Earth's deep mantle and\nprovides a latest date for the timing of giant planet instability.","PeriodicalId":501209,"journal":{"name":"arXiv - PHYS - Earth and Planetary Astrophysics","volume":"17 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Earth and Planetary Astrophysics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.07876","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Intense bombardment of solar system planets in the immediate aftermath of protoplanetary disk dissipation has played a key role in their atmospheric evolution. During this epoch, energetic collisions will have removed significant masses of gas from rocky planet atmospheres. Noble gases are powerful tracers of this early atmospheric history, xenon in particular, which on Mars and Earth shows significant depletions and isotopic fractionations relative to the lighter noble gasses. To evaluate the effect of impacts on the loss and fractionation of xenon, we measure its ionization and recombination efficiency by laser shock and apply these constraints to model impact-driven atmospheric escape on Mars. We demonstrate that impact bombardment within the first $200$ to $300\,\text{Myr}$ of solar system history generates the observed Xe depletion and isotope fractionation of the modern martian atmosphere. This process may also explain the Xe depletion recorded in Earth's deep mantle and provides a latest date for the timing of giant planet instability.
早期火星大气层的撞击雕刻
太阳系行星在原行星盘消散之后立即受到强烈轰击,这在它们的大气演化过程中起到了关键作用。在这一时期,高能碰撞将从岩质行星大气中清除大量气体。惰性气体是这一早期大气历史的有力示踪剂,尤其是氙,在火星和地球上,与较轻的惰性气体相比,氙显示出显著的耗竭和同位素分馏。为了评估撞击对氙的损耗和分馏的影响,我们通过激光冲击测量了氙的电离和重组效率,并将这些约束条件用于模拟火星上撞击驱动的大气逃逸。我们证明,太阳系历史上最初200美元到300,text{Myr}美元的撞击轰击产生了所观测到的现代火星大气的氙耗竭和同位素分馏。这一过程也可以解释地球深地幔中记录的Xe耗竭,并为巨行星不稳定的时间提供了一个最新的日期。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信