No detection of methane on Mars from early ExoMars Trace Gas Orbiter observations
- Korablev, O.
- Vandaele, A.
- Montmessin, F.
- Fedorova, A.
- Trokhimovskiy, A.
- Forget, F.
- Lefèvre, F.
- Daerden, F.
- Thomas, I.
- Trompet, L.
- Erwin, J.
- Aoki, S.
- Robert, S.
- Neary, L.
- Viscardy, S.
- Grigoriev, A.
- Ignatiev, N.
- Shakun, A.
- Patrakeev, A.
- Belyaev, D.
- Bertaux, J.
- Olsen, K.
- Baggio, L.
- Alday, J.
- Ivanov, Y.
- Ristic, B.
- Mason, J.
- Willame, Y.
- Depiesse, C.
- Hetey, L.
- Berkenbosch, S.
- Clairquin, R.
- Queirolo, C.
- Beeckman, B.
- Neefs, E.
- Patel, M.
- Bellucci, G.
- López-Moreno, J.
- Wilson, C.
- Etiope, G.
- Zelenyi, L.
- Svedhem, H.
- ACS, J.
- Teams, N.
- Korablev, O.
- Vandaele, A.
- Montmessin, F.
- Fedorova, A.
- Trokhimovskiy, A.
- Forget, F.
- Lefèvre, F.
- Daerden, F.
- Thomas, I.
- Trompet, L.
- Erwin, J.
- Aoki, S.
- Robert, S.
- Neary, L.
- Viscardy, S.
- Grigoriev, A.
- Ignatiev, N.
- Shakun, A.
- Patrakeev, A.
- Belyaev, D.
- Bertaux, J.
- Olsen, K.
- Baggio, L.
- Alday, J.
- Ivanov, Y.
- Ristic, B.
- Mason, J.
- Willame, Y.
- Depiesse, C.
- Hetey, L.
- Berkenbosch, S.
- Clairquin, R.
- Queirolo, C.
- Beeckman, B.
- Neefs, E.
- Patel, M.
- Bellucci, G.
- López-Moreno, J.
- Wilson, C.
- Etiope, G.
- Zelenyi, L.
- Svedhem, H.
- Vago, J.
- Alonso-Rodrigo, G.
- Altieri, F.
- Anufreychik, K.
- Arnold, G.
- Bauduin, S.
- Bolsée, D.
- Carrozzo, G.
- Clancy, R.
- Cloutis, E.
- Crismani, M.
- Da Pieve, F.
- D’Aversa, E.
- Duxbury, N.
- Encrenaz, T.
- Fouchet, T.
- Funke, B.
- Fussen, D.
- Garcia-Comas, M.
- Gérard, J.
- Giuranna, M.
- Gkouvelis, L.
- Gonzalez-Galindo, F.
- Grassi, D.
- Guerlet, S.
- Hartogh, P.
- Holmes, J.
- Hubert, B.
- Kaminski, J.
- Karatekin, O.
- Kasaba, Y.
- Kass, D.
- Khatuntsev, I.
- Kleinbohl, A.
- Kokonkov, N.
- Krasnopolsky, V.
- Kuzmin, R.
- Lacombe, G.
- Lanciano, O.
- Lellouch, E.
- Lewis, S.
- Luginin, M.
- Liuzzi, G.
- López-Puertas, M.
- López-Valverde, M.
- Määttänen, A.
- Mahieux, A.
- Marcq, E.
- Martin-Torres, J.
- Maslov, I.
- Medvedev, A.
- Moshkin, B.
- Mumma, M.
- Nakagawa, H.
- Novak, R.
- Oliva, F.
- Patsaev, D.
- Piccialli, A.
- Quantin-Nata, C.
- Renotte, E.
- Ritter, B.
- Rodin, A.
- Schmidt, F.
- Schneider, N.
- Shematovich, V.
- Smith, M.
- Teanby, N.
- Thiemann, E.
- Thomas, N.
- Auwera, J.
- Vazquez, L.
- Villanueva, G.
- Vincendon, M.
- Whiteway, J.
- Wilquet, V.
- Wolff, M.
- Wolkenberg, P.
- Yelle, R.
- Zasova, L.
- Zorzano, M.
DOIAbstract
The detection of methane on Mars has been interpreted as indicating that geochemical or biotic activities could persist on Mars today1. A number of different measurements of methane show evidence of transient, locally elevated methane concentrations and seasonal variations in background methane concentrations2,3,4,5. These measurements, however, are difficult to reconcile with our current understanding of the chemistry and physics of the Martian atmosphere6,7, which—given methane’s lifetime of several centuries—predicts an even, well mixed distribution of methane1,6,8. Here we report highly sensitive measurements of the atmosphere of Mars in an attempt to detect methane, using the ACS and NOMAD instruments onboard the ESA-Roscosmos ExoMars ...
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