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Isotopes of nitrogen on Mars: Atmospheric measurements by Curiosity's mass spectrometer
[1] The Sample Analysis at Mars (SAM) instrument suite on the Mars Science Laboratory (MSL) measured a Mars atmospheric(14)N/(15)N ratio of 173 ± 11 on sol 341 of the mission, agreeing with Viking's measurement of 168 ± 17. The MSL/SAM value was based on Quadrupole Mass Spectrometer measurement...
Autores principales: | , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BlackWell Publishing Ltd
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4459194/ https://www.ncbi.nlm.nih.gov/pubmed/26074632 http://dx.doi.org/10.1002/2013GL057840 |
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author | Wong, Michael H Atreya, Sushil K Mahaffy, Paul N Franz, Heather B Malespin, Charles Trainer, Melissa G Stern, Jennifer C Conrad, Pamela G Manning, Heidi L K Pepin, Robert O Becker, Richard H McKay, Christopher P Owen, Tobias C Navarro-González, Rafael Jones, John H Jakosky, Bruce M Steele, Andrew |
author_facet | Wong, Michael H Atreya, Sushil K Mahaffy, Paul N Franz, Heather B Malespin, Charles Trainer, Melissa G Stern, Jennifer C Conrad, Pamela G Manning, Heidi L K Pepin, Robert O Becker, Richard H McKay, Christopher P Owen, Tobias C Navarro-González, Rafael Jones, John H Jakosky, Bruce M Steele, Andrew |
author_sort | Wong, Michael H |
collection | PubMed |
description | [1] The Sample Analysis at Mars (SAM) instrument suite on the Mars Science Laboratory (MSL) measured a Mars atmospheric(14)N/(15)N ratio of 173 ± 11 on sol 341 of the mission, agreeing with Viking's measurement of 168 ± 17. The MSL/SAM value was based on Quadrupole Mass Spectrometer measurements of an enriched atmospheric sample, with CO(2) and H(2)O removed. Doubly ionized nitrogen data at m/z 14 and 14.5 had the highest signal/background ratio, with results confirmed by m/z 28 and 29 data. Gases in SNC meteorite glasses have been interpreted as mixtures containing a Martian atmospheric component, based partly on distinctive(14)N/(15)N and(40)Ar/(14)N ratios. Recent MSL/SAM measurements of the(40)Ar/(14)N ratio (0.51 ± 0.01) are incompatible with the Viking ratio (0.35 ± 0.08). The meteorite mixing line is more consistent with the atmospheric composition measured by Viking than by MSL. |
format | Online Article Text |
id | pubmed-4459194 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | BlackWell Publishing Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-44591942015-06-12 Isotopes of nitrogen on Mars: Atmospheric measurements by Curiosity's mass spectrometer Wong, Michael H Atreya, Sushil K Mahaffy, Paul N Franz, Heather B Malespin, Charles Trainer, Melissa G Stern, Jennifer C Conrad, Pamela G Manning, Heidi L K Pepin, Robert O Becker, Richard H McKay, Christopher P Owen, Tobias C Navarro-González, Rafael Jones, John H Jakosky, Bruce M Steele, Andrew Geophys Res Lett Regular Articles [1] The Sample Analysis at Mars (SAM) instrument suite on the Mars Science Laboratory (MSL) measured a Mars atmospheric(14)N/(15)N ratio of 173 ± 11 on sol 341 of the mission, agreeing with Viking's measurement of 168 ± 17. The MSL/SAM value was based on Quadrupole Mass Spectrometer measurements of an enriched atmospheric sample, with CO(2) and H(2)O removed. Doubly ionized nitrogen data at m/z 14 and 14.5 had the highest signal/background ratio, with results confirmed by m/z 28 and 29 data. Gases in SNC meteorite glasses have been interpreted as mixtures containing a Martian atmospheric component, based partly on distinctive(14)N/(15)N and(40)Ar/(14)N ratios. Recent MSL/SAM measurements of the(40)Ar/(14)N ratio (0.51 ± 0.01) are incompatible with the Viking ratio (0.35 ± 0.08). The meteorite mixing line is more consistent with the atmospheric composition measured by Viking than by MSL. BlackWell Publishing Ltd 2013-12-16 2013-12-09 /pmc/articles/PMC4459194/ /pubmed/26074632 http://dx.doi.org/10.1002/2013GL057840 Text en © 2013 The Authors. Geophysical Research Letters published by Wiley on behalf of the American Geophysical Union. http://creativecommons.org/licenses/by-nc-nd/3.0/ This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. |
spellingShingle | Regular Articles Wong, Michael H Atreya, Sushil K Mahaffy, Paul N Franz, Heather B Malespin, Charles Trainer, Melissa G Stern, Jennifer C Conrad, Pamela G Manning, Heidi L K Pepin, Robert O Becker, Richard H McKay, Christopher P Owen, Tobias C Navarro-González, Rafael Jones, John H Jakosky, Bruce M Steele, Andrew Isotopes of nitrogen on Mars: Atmospheric measurements by Curiosity's mass spectrometer |
title | Isotopes of nitrogen on Mars: Atmospheric measurements by Curiosity's mass spectrometer |
title_full | Isotopes of nitrogen on Mars: Atmospheric measurements by Curiosity's mass spectrometer |
title_fullStr | Isotopes of nitrogen on Mars: Atmospheric measurements by Curiosity's mass spectrometer |
title_full_unstemmed | Isotopes of nitrogen on Mars: Atmospheric measurements by Curiosity's mass spectrometer |
title_short | Isotopes of nitrogen on Mars: Atmospheric measurements by Curiosity's mass spectrometer |
title_sort | isotopes of nitrogen on mars: atmospheric measurements by curiosity's mass spectrometer |
topic | Regular Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4459194/ https://www.ncbi.nlm.nih.gov/pubmed/26074632 http://dx.doi.org/10.1002/2013GL057840 |
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