دورية أكاديمية
Ethyl alcohol and sugar in comet C/2014Q2 (Lovejoy)
| العنوان: | Ethyl alcohol and sugar in comet C/2014Q2 (Lovejoy) |
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| المؤلفون: | Biver, Nicolas, Bockelée-Morvan, Dominique, Moreno, Raphaël, Crovisier, Jacques, Colom, Pierre, Lis, Dariusz C., Sandqvist, Aage, Boissier, Jérémie, Despois, D., Milam, Stefanie N. |
| المساهمون: | Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Institut de RadioAstronomie Millimétrique (IRAM), Centre National de la Recherche Scientifique (CNRS), FORMATION STELLAIRE 2015, Laboratoire d'Astrophysique de Bordeaux Pessac (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), NASA Goddard Space Flight Center (GSFC) |
| المصدر: | ISSN: 2375-2548 ; Science Advances ; https://hal.science/hal-01239059Test ; Science Advances , 2015, 1, pp.Science Advances, Vol. 1, No. 9, id.1500863. ⟨10.1126/sciadv.1500863⟩. |
| بيانات النشر: | HAL CCSD American Association for the Advancement of Science (AAAS) |
| سنة النشر: | 2015 |
| المجموعة: | Archive de l'Observatoire de Paris (HAL) |
| مصطلحات موضوعية: | [SDU.ASTR.GA]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA] |
| الوصف: | International audience ; The presence of numerous complex organic molecules (COMs; defined as those containing six or more atoms) around protostars shows that star formation is accompanied by an increase of molecular complexity. These COMs may be part of the material from which planetesimals and, ultimately, planets formed. Comets represent some of the oldest and most primitive material in the solar system, including ices, and are thus our best window into the volatile composition of the solar protoplanetary disk. Molecules identified to be present in cometary ices include water, simple hydrocarbons, oxygen, sulfur, and nitrogen-bearing species, as well as a few COMs, such as ethylene glycol and glycine. We report the detection of 21 molecules in comet C/2014 Q2 (Lovejoy), including the first identification of ethyl alcohol (ethanol, C2H5OH) and the simplest monosaccharide sugar glycolaldehyde (CH2OHCHO) in a comet. The abundances of ethanol and glycolaldehyde, respectively 5 and 0.8% relative to methanol (0.12 and 0.02% relative to water), are somewhat higher than the values measured in solar- type protostars. Overall, the high abundance of COMs in cometary ices supports the formation through grain-surface reactions in the solar system protoplanetary disk. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/arxiv/1511.04999; hal-01239059; https://hal.science/hal-01239059Test; https://hal.science/hal-01239059/documentTest; https://hal.science/hal-01239059/file/e1500863.full.pdfTest; ARXIV: 1511.04999; BIBCODE: 2015SciA.115863B |
| DOI: | 10.1126/sciadv.1500863 |
| الإتاحة: | https://doi.org/10.1126/sciadv.1500863Test https://hal.science/hal-01239059Test https://hal.science/hal-01239059/documentTest https://hal.science/hal-01239059/file/e1500863.full.pdfTest |
| حقوق: | http://creativecommons.org/licenses/by-ncTest/ ; info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.669101DF |
| قاعدة البيانات: | BASE |
| DOI: | 10.1126/sciadv.1500863 |
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