Počet záznamů: 1
Impact sculpting of the early martian atmosphere
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SYSNO ASEP 0598753 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Impact sculpting of the early martian atmosphere Tvůrce(i) Shorttle, O. (GB)
Saeidfirozeh, Homa (UFCH-W) ORCID, RID
Rimmer, P. B. (GB)
Laitl, Vojtěch (UFCH-W) ORCID
Kubelík, Petr (UFCH-W) RID, ORCID
Petera, Lukáš (UFCH-W) ORCID
Ferus, Martin (UFCH-W) ORCID, RID, SAIČíslo článku eadm9921 Zdroj.dok. Science Advances. - : American Association for the Advancement of Science - ISSN 2375-2548
Roč. 10, č. 37 (2024)Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova electron-ion recombination ; noble-gases ; solar-system ; thermal ionization ; earths atmosphere ; planet formation ; late accretion ; shock-waves ; xenon ; evolution Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry CEP GA21-11366S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UFCH-W - RVO:61388955 UT WOS 001310268400012 EID SCOPUS 85204167918 DOI https://doi.org/10.1126/sciadv.adm9921 Anotace 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 substantial 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 million years 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. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2025 Elektronická adresa https://hdl.handle.net/11104/0356352
Počet záznamů: 1