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Ethyl alcohol and s...
Ethyl alcohol and sugar in comet C/2014 Q2 (Lovejoy)
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Biver, Nicolas (author)
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Bockelée-Morvan, Dominique (author)
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Moreno, Raphaël (author)
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Crovisier, Jacques (author)
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Colom, Pierre (author)
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Lis, Dariusz C. (author)
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- Sandqvist, Aage (author)
- Stockholms universitet,Institutionen för astronomi
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Boissier, Jérémie (author)
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Despois, Didier (author)
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Milam, Stefanie N. (author)
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(creator_code:org_t)
- American Association for the Advancement of Science (AAAS), 2015
- 2015
- English.
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In: Science Advances. - : American Association for the Advancement of Science (AAAS). - 2375-2548. ; 1:9
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https://doi.org/10.1...
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http://advances.scie...
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https://urn.kb.se/re...
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Abstract
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- Astronomy
- astronomi
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Biver, Nicolas
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Bockelée-Morvan, ...
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Moreno, Raphaël
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Crovisier, Jacqu ...
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Colom, Pierre
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Lis, Dariusz C.
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show more...
-
Sandqvist, Aage
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Boissier, Jérémi ...
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Despois, Didier
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Milam, Stefanie ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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Science Advances
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Stockholm University