| | |
| | |
Stat |
Members: 3645 Articles: 2'501'711 Articles rated: 2609
19 April 2024 |
|
| | | |
|
Article overview
| |
|
A radical route to interstellar propylene formation | J. M. C. Rawlings
; D. A. Williams
; S. Viti
; C. Cecchi-Pestellini
; | Date: |
12 Aug 2013 | Abstract: | Complex organic molecules, such as propylene (CH3CHCH2), are detected in
molecular clouds (such as TMC1) with high fractional abundances (~2.10^{-9},
relative to hydrogen) that cannot be explained by gas-phase chemical reactions
under normal dark cloud conditions. To obtain such high abundances requires an
efficient grain-driven chemistry to be operating, coupled with effective
desorption of the complex organics back into the gas-phase. We propose that the
mechanism that we have previously described; rapid high density gas-phase
chemistry in the gas released following sudden, total, ice mantle sublimation -
can explain the high abundances, without recourse to ill-defined surface
chemical pathways. Our model provides a natural explanation for why it is that
some sources harbour high abundances of propylene, whilst others do not; based
on the age and level of dynamical activity within the source (which affects the
ice composition) and the chemical composition of the ambient gas. | Source: | arXiv, 1308.2559 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |