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Is There Any Linkag...
Is There Any Linkage between Interstellar Aldehyde and Alcohol?
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- Mondal, Suman Kumar (author)
- Indian Centre for Space Physics
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- Gorai, Prasanta, 1991 (author)
- Indian Centre for Space Physics,Chalmers tekniska högskola,Chalmers University of Technology
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- Sil, Milan (author)
- Indian Centre for Space Physics
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- Ghosh, Rana (author)
- Indian Centre for Space Physics
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Etim, Emmanuel E. (author)
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- Chakrabarti, Sandip K. (author)
- Indian Centre for Space Physics
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- Shimonishi, Takashi (author)
- Niigata University
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- Nakatani, Naoki (author)
- Hokkaido University,Tokyo Metropolitan University
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- Furuya, Kenji (author)
- National Astronomical Observatory of Japan,University of Tsukuba
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- Tan, Jonathan, 1973 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,University of Virginia
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- Das, Ankan (author)
- Indian Centre for Space Physics
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(creator_code:org_t)
- 2021-11-30
- 2021
- English.
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In: Astrophysical Journal. - : American Astronomical Society. - 1538-4357 .- 0004-637X. ; 922:2
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Abstract
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- It is speculated that there might be some linkage between interstellar aldehydes and their corresponding alcohols. Here an observational study and astrochemical modeling are coupled together to illustrate the connection between them. The ALMA cycle 4 data of a hot molecular core, G10.47+0.03, are utilized for this study. Various aldehydes (acetaldehyde, propanal, and glycolaldehyde), alcohols (methanol and ethylene glycol), and a ketone (acetone) are identified in this source. The excitation temperatures and column densities of these species were derived via the rotation diagram method assuming local thermodynamic equilibrium conditions. An extensive investigation is carried out to understand the formation of these species. Six pairs of aldehyde-alcohol are considered for this study: (i) methanal and methanol, (ii) ethanal and ethanol, (iii) propanal and 1-propanol, (iv) propenal and allyl alcohol, (v) propynal and propargyl alcohol, and (vi) glycolaldehyde and ethylene glycol. One pair of ketone-alcohol (acetone and isopropanol) and ketene-alcohol (ethenone and vinyl alcohol) are also considered. Two successive hydrogenation reactions in the ice phase are examined to form these alcohols from aldehydes, ketone, and ketene, respectively. Quantum chemical methods are extensively executed to review the ice-phase formation route and the kinetics of these species. Based on the obtained kinetic data, astrochemical modeling is employed to derive the abundances of these aldehydes, alcohols, ketone, and ketene in this source. It is seen that our model could successfully explain the observed abundances of various species in this hot molecular core.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geokemi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geochemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
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- art (subject category)
- ref (subject category)
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- By the author/editor
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Mondal, Suman Ku ...
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Gorai, Prasanta, ...
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Sil, Milan
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Ghosh, Rana
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Etim, Emmanuel E ...
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Chakrabarti, San ...
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show more...
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Shimonishi, Taka ...
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Nakatani, Naoki
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Furuya, Kenji
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Tan, Jonathan, 1 ...
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Das, Ankan
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- 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 Atom and Molecul ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geochemistry
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Organic Chemistr ...
- Articles in the publication
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Astrophysical Jo ...
- By the university
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Chalmers University of Technology