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Sökning: WFRF:(Ten Kate M) > Luleå tekniska universitet > Ming D. W. > Organic molecules i...

Organic molecules in the Sheepbed Mudstone, Gale Crater, Mars

Freissinet, C. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; NASA Postdoctoral Program, Oak Ridge Associated Universities, Oak Ridge, Tennessee, USA
Glavin, D.P. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Mahaffy, P.R. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland
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Miller, K.E. (författare)
Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge
Eigenbrode, J.L. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Summons, R.E. (författare)
Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge
Brunner, A.E. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; Center for Research and Exploration in Space Science & Technology, University of Maryland, College Park, Maryland, USA
Buch, A. (författare)
Laboratoire de Génie des Procédés et Matériaux, Ecole Centrale Paris, Châtenay-Malabry, France
Szopa, C. (författare)
Laboratoire Atmosphères, Milieux, Observations Spatiales, Pierre and Marie Curie University, Université de Versailles Saint-Quentin-en-Yvelines, and CNRS, Paris, France
Archer Jr., P.D. (författare)
Jacobs, NASA Johnson Space Center, Houston, Texas, USA
Franz, H.B. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; Center for Research and Exploration in Space Science & Technology, University of Maryland, Baltimore County, Baltimore, Maryland, USA
Atreya, S.K. (författare)
Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan, USA
Brinckerhoff, E.B. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Cabane, M. (författare)
Laboratoire Atmosphères, Milieux, Observations Spatiales, Pierre and Marie Curie University, Université de Versailles Saint-Quentin-en-Yvelines, and CNRS, Paris, France
Coll, P. (författare)
Laboratoire Interuniversitaire des Systèmes Atmosphériques, Université Paris-Est Créteil, Paris VII–Denis Diderot University, and CNRS, Créteil, France
Conrad, P.G. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Des Marais, D.J. (författare)
Exobiology Branch, NASA Ames Research Center, Moffett Field, California, USA
Dworkin, J.P. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Fairén, A.G. (författare)
Department of Astronomy, Cornell University, Ithaca, New York, USA; Centro de Astrobiología, INTA-CSIC, Madrid, Spain
François, P. (författare)
Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan, USA
Grotzinger, J.P. (författare)
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California, USA
Kashyap, S. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; Center for Research and Exploration in Space Science & Technology, University of Maryland, Baltimore County, Baltimore, Maryland, USA
ten Kate, I.L. (författare)
Earth Sciences Department, Utrecht University, Utrecht, Netherlands
Leshin, L.A. (författare)
Department of Earth and Environmental Sciences and School of Science, Rensselaer Polytechnic Institute, Troy, New York, USA
Malespin, C.A. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; Goddard Earth Sciences and Technologies and Research, Universities Space Research Association, Columbia, Maryland, USA
Martin, M.G. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA; Department of Chemistry, Catholic University of America, Washington, District of Columbia, USA
Martín-Torres, F.J. (författare)
Luleå tekniska universitet,Rymdteknik,Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Granada, Spain,MSL Science Team
McAdam, A.C. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Ming, D.W. (författare)
Astromaterials Research and Exploration Science Directorate, NASA Johnson Space Center, Houston, Texas, USA
Navarro-González, R. (författare)
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad Universitaria, México City, Mexico
Pavlov, A.A. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Prats, B.D. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Squyres, S.W. (författare)
Department of Astronomy, Cornell University, Ithaca, New York, USA
Steele, A. (författare)
Geophysical Laboratory, Carnegie Institution of Washington, Washington, District of Columbia, USA
Stern, J.C. (författare)
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Sumner, D.Y. (författare)
Department of Earth and Planetary Sciences, University of California, Davis, California, USA
Sutter, B. (författare)
Jacobs, NASA Johnson Space Center, Houston, Texas, USA
Zorzano, María-Paz (författare)
Centro de Astrobiologia, INTA-CSIC, Madrid
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 (creator_code:org_t)
2015
2015
Engelska.
Ingår i: Journal of Geophysical Research - Planets. - 2169-9097 .- 2169-9100. ; 120:3, s. 495-514
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • The Sample Analysis at Mars (SAM) instrument [Mahaffy et al., 2012] onboard the Mars Science Laboratory (MSL) Curiosity rover is designed to conduct inorganic and organic chemical analyses of the atmosphere and the surface regolith and rocks to help evaluate the past and present habitability potential of Mars at Gale Crater [Grotzinger et al., 2012]. Central to this task is the development of an inventory of any organic molecules present to elucidate processes associated with their origin, diagenesis, concentration and long-term preservation. This will guide the future search for biosignatures [Summons et al., 2011]. Here we report the definitive identification of chlorobenzene (150–300 parts per billion by weight (ppbw)) and C2 to C4 dichloroalkanes (up to 70 ppbw) with the SAM gas chromatograph mass spectrometer (GCMS), and detection of chlorobenzene in the direct evolved gas analysis (EGA) mode, in multiple portions of the fines from the Cumberland drill hole in the Sheepbed mudstone at Yellowknife Bay. When combined with GCMS and EGA data from multiple scooped and drilled samples, blank runs and supporting laboratory analog studies, the elevated levels of chlorobenzene and the dichloroalkanes cannot be solely explained by instrument background sources known to be present in SAM. We conclude that these chlorinated hydrocarbons are the reaction products of martian chlorine and organic carbon derived from martian sources (e.g. igneous, hydrothermal, atmospheric, or biological) or exogenous sources such as meteorites, comets or interplanetary dust particles.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)

Nyckelord

Atmosfärsvetenskap
Atmospheric Science

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