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Infrared detection of aliphatic organics on a cometary nucleus

التفاصيل البيبلوغرافية
العنوان: Infrared detection of aliphatic organics on a cometary nucleus
المؤلفون: Robert W. Carlson, D. Bockelée-Morvan, J. P. Combe, Antoine Pommerol, Vito Mennella, Federico Tosi, Cedric Leyrat, Giovanna Rinaldi, Batiste Rousseau, F. Mancarella, L. Moroz, Michelangelo Formisano, Ernesto Palomba, Pierre Beck, M. C. De Sanctis, I. Istiqomah, Eric Quirico, David Kappel, Stéphane Erard, Antonella Barucci, Gabriele Arnold, Vassilissa Vinogradoff, Giancarlo Bellucci, Fabrizio Capaccioni, Mauro Ciarniello, C. Pilorget, Andrea Longobardo, Andrea Raponi, Sonia Fornasier, Gianrico Filacchione, Olivier Poch
المساهمون: Istituto di Astrofisica e Planetologia Spaziali - INAF (IAPS), Istituto Nazionale di Astrofisica (INAF), Physique des interactions ioniques et moléculaires (PIIM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), Centre National d'Études Spatiales [Toulouse] (CNES)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA), Istituto di Fisica dello Spazio Interplanetario (IFSI), Consiglio Nazionale delle Ricerche (CNR), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Météo-France -Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Météo-France, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
المصدر: Nature Astronomy
Nature Astronomy, Nature Publishing Group, 2020, 4 (5), pp.500-505. ⟨10.1038/s41550-019-0992-8⟩
Nature Astronomy, 2020, 4 (5), pp.500-505. ⟨10.1038/s41550-019-0992-8⟩
بيانات النشر: HAL CCSD, 2020.
سنة النشر: 2020
مصطلحات موضوعية: Earth and Planetary Astrophysics (astro-ph.EP), In situ, Physics, Solar System, 010504 meteorology & atmospheric sciences, Infrared, Comet, [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP], FOS: Physical sciences, Hyperspectral imaging, Astronomy and Astrophysics, 01 natural sciences, Astrobiology, medicine.anatomical_structure, [SDU]Sciences of the Universe [physics], 13. Climate action, Comet nucleus, 0103 physical sciences, medicine, Absorption (electromagnetic radiation), 010303 astronomy & astrophysics, Nucleus, Astrophysics - Earth and Planetary Astrophysics, 0105 earth and related environmental sciences
الوصف: The European Space Agency’s Rosetta mission1 has acquired unprecedented measurements of the surface of the nucleus of comet 67P/Churyumov–Gerasimenko (hereafter, 67P), the composition of which, as determined by in situ and remote-sensing instruments, including the VIRTIS instrument2, seems to be an assemblage of ices, minerals and organic material3. We performed a refined analysis of infrared observations of the nucleus of 67P carried out by the VIRTIS-M hyperspectral imager. We find that the overall shape of the infrared spectrum of 67P is similar to that of other carbon-rich outer Solar System objects, suggesting a possible genetic link with them. More importantly, we also confirm the complex spectral structure of the wide 2.8–3.6 µm absorption feature populated by fainter bands. Among these, we unambiguously identify the presence of aliphatic organics by their ubiquitous 3.38 µm, 3.42 µm and 3.47 µm bands. This infrared detection of aliphatic species on a cometary surface has strong implications for the evolutionary history of the primordial Solar System and is evidence that comets provide an evolutionary link between interstellar material and Solar System bodies4. A refined analysis of infrared observations of comet 67P/Churyumov–Gerasimenko from the VIRTIS instrument on board the Rosetta spacecraft has revealed the presence of aliphatic organic molecules on the comet nucleus.
اللغة: English
تدمد: 2397-3366
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ddf4d077830ca4d8d59e2a9790c8d5a
https://hal.archives-ouvertes.fr/hal-02996648
حقوق: OPEN
رقم الأكسشن: edsair.doi.dedup.....1ddf4d077830ca4d8d59e2a9790c8d5a
قاعدة البيانات: OpenAIRE
الوصف
تدمد:23973366