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Venus' Mass Spectra...
Venus' Mass Spectra Show Signs of Disequilibria in the Middle Clouds
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- Mogul, Rakesh (författare)
- Calif State Polytech Univ Pomona, Chem & Biochem Dept, Pomona, CA 91768 USA; Blue Marble Space Inst Sci, Seattle, WA 98104 USA
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- Limaye, Sanjay S. (författare)
- GSFC Sellers Exoplanet Environm Collaborat, Greenbelt, MD USA
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- Way, Michael J. (författare)
- Uppsala universitet,Teoretisk astrofysik,Univ Wisconsin, Lab Genet, Madison, WI USA; NASA, Goddard Inst Space Studies, New York, NY 10025 USA
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- Cordova, Jaime A. (författare)
- Univ Wisconsin, Space Sci & Engn Ctr, Madison, WI USA
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(creator_code:org_t)
- American Geophysical Union (AGU), 2021
- 2021
- Engelska.
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Ingår i: Geophysical Research Letters. - : American Geophysical Union (AGU). - 0094-8276 .- 1944-8007. ; 48:7
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We present a re-examination of mass spectral data obtained from the Pioneer Venus Large Probe Neutral Mass Spectrometer. Our interpretations of differing trace chemical species are suggestive of redox disequilibria in Venus' middle clouds. Assignments to the data (at 51.3 km) include phosphine, hydrogen sulfide, nitrous acid, nitric acid, carbon monoxide, hydrochloric acid, hydrogen cyanide, ethane, and potentially ammonia, chlorous acid, and several tentative PxOy species. All parent ions were predicated upon assignment of corresponding fragmentation products, isotopologues, and atomic species. The data reveal parent ions at varying oxidation states, implying the presence of reducing power in the clouds, and illuminating the potential for chemistries yet to be discovered. When considering the hypothetical habitability of Venus' clouds, the assignments reveal a potential signature of anaerobic phosphorus metabolism (phosphine), an electron donor for anoxygenic photosynthesis (nitrite), and major constituents of the nitrogen cycle (nitrate, nitrite, ammonia, and N2).
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geofysik (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geophysics (hsv//eng)
Nyckelord
- disequilibria
- habitability
- mass spectrometry
- nitrite
- phosphine
- Venus
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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