Recent Activity. We present the detection of two H2C3O isomers, propynal and cyclopropenone, toward various starless cores and molecular clouds, together with upper limits for the third isomer propadienone.
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We review the processes controlling the abundances of H2C3O isomers in interstellar media showing that the reactions involved are gas-phase ones. The snippet could not be located in the article text.
This may be because the snippet appears in a figure legend, contains special characters or spans different sections of the article. Mon Not R Astron Soc. Author manuscript; available in PMC Mar PMID: Jean-Christophe Loison 1 Univ. Valentine Wakelam 5 Univ. Kevin M.
Hickson 1 Univ. Gobetti , Bologna, Italy. Copyright notice. See other articles in PMC that cite the published article. Abstract We present the detection of two H 2 C 3 O isomers, propynal and cyclopropenone, toward various starless cores and molecular clouds, together with upper limits for the third isomer propadienone.
Table 1 H 2 C 3 O isomers characteristics. Open in a separate window. Table 2 Observed line parameters. Table 3 Column densities and fractional abundances relative to H 2.
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The chemical model The chemical reactions for the various H 2 C 3 O isomers formation and destruction listed in Table 4 have been implemented in the chemical model Nautilus Hersant et al. Simplified products 6. Simplified products 7. Rate constant may be much lower. Scott et al. Branching ratio deduced from the fact that H 2 C 3 O is not detected.
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Figure 3. Figure 4. Anicich VG. JPL Publication. NASA; Bergeat A, Loison J-C. Brown R, Godfrey P.
Origins Life Evol. ApJ Lett. Dong H, Ding Y. Haider N, Husain D.
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Faraday Trans. Hasegawa TI, Herbst E. In: Star Formation Nakamoto T, editor. NRO; Nagano: Husain D, Ioannou AX. Karton A, Talbi D. Ohishi M, Kaifu N. Faraday Discuss. Petrie S. Mass Spectrom. Nature Chemistry. RSC Advances. ASP Conference Series. Turner BE. Vasyunin AI, Herbst E. The Journal of Physical Chemistry A. Wakelam V, Herbst E. ApJ, Supp.
Space Sciences Rev. How does Europe PMC derive its citations network? Protein Interactions. Protein Families.
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Simplified products. Global rate constant from Slagle et al. It is clear that Mr. BTW, Mr. Ramel hates Apple computers as well. You really have to read his interesting article with all those compelling arguments. His love for Windows XP is.. The analogy with Linux is plain enough: They want something akin to the hardened and slow-changing Red Hat Enterprise Linux, not the Fedora development release.
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