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Abundance and isotopic composition of gases in the martian atmosphere from the Curiosity rover.

Mahaffy, Paul R and Webster, Christopher R and Atreya, Sushil K and Franz, Heather and Wong, Michael and Conrad, Pamela G and Harpold, Dan and Jones, John J and Leshin, Laurie A and Manning, Heidi and Owen, Tobias and Pepin, Robert O and Squyres, Steven and Trainer, Melissa and the MSL Science Team and DLR Collaborator, Reitz G (2013) Abundance and isotopic composition of gases in the martian atmosphere from the Curiosity rover. Science, 341 (6143), pp. 263-266. American Association for the Advancement of Science (AAAS). doi: 10.1126/science.1237966. ISSN 0036-8075.

Full text not available from this repository.

Abstract

Volume mixing and isotope ratios secured with repeated atmospheric measurements taken with the Sample Analysis at Mars instrument suite on the Curiosity rover are: carbon dioxide (CO₂), 0.960(±0.007); argon-40 ((40)Ar), 0.0193(±0.0001); nitrogen (N₂), 0.0189(±0.0003); oxygen, 1.45(±0.09) × 10(-3); carbon monoxide, < 1.0 × 10(-3); and (40)Ar/(36)Ar, 1.9(±0.3) × 10(3). The (40)Ar/N₂ ratio is 1.7 times greater and the (40)Ar/(36)Ar ratio 1.6 times lower than values reported by the Viking Lander mass spectrometer in 1976, whereas other values are generally consistent with Viking and remote sensing observations. The (40)Ar/(36)Ar ratio is consistent with martian meteoritic values, which provides additional strong support for a martian origin of these rocks. The isotopic signature δ(13)C from CO₂ of ~45 per mil is independently measured with two instruments. This heavy isotope enrichment in carbon supports the hypothesis of substantial atmospheric loss.

Item URL in elib:https://elib.dlr.de/87348/
Document Type:Article
Title:Abundance and isotopic composition of gases in the martian atmosphere from the Curiosity rover.
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Mahaffy, Paul RNASA Goddard Space Flight Center, Greenbelt, MD 20771, USA. paul.r.mahaffy (at) nasa.govUNSPECIFIED
Webster, Christopher RUNSPECIFIEDUNSPECIFIED
Atreya, Sushil KUNSPECIFIEDUNSPECIFIED
Franz, HeatherUNSPECIFIEDUNSPECIFIED
Wong, MichaelUNSPECIFIEDUNSPECIFIED
Conrad, Pamela GUNSPECIFIEDUNSPECIFIED
Harpold, DanUNSPECIFIEDUNSPECIFIED
Jones, John JUNSPECIFIEDUNSPECIFIED
Leshin, Laurie AUNSPECIFIEDUNSPECIFIED
Manning, HeidiUNSPECIFIEDUNSPECIFIED
Owen, TobiasUNSPECIFIEDUNSPECIFIED
Pepin, Robert OUNSPECIFIEDUNSPECIFIED
Squyres, StevenUNSPECIFIEDUNSPECIFIED
Trainer, Melissa and the MSL Science TeamUNSPECIFIEDUNSPECIFIED
DLR Collaborator, Reitz GRadiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany.UNSPECIFIED
Date:2013
Journal or Publication Title:Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:341
DOI :10.1126/science.1237966
Page Range:pp. 263-266
Publisher:American Association for the Advancement of Science (AAAS)
ISSN:0036-8075
Status:Published
Keywords:Mars, MSL, Curiosity rover, martian atmosphere
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Vorhaben MSL-Radiation (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:23 Jan 2014 10:00
Last Modified:08 Mar 2018 18:51

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