Formation of NH2CHO and CH3CHO upon UV processing of interstellar ice analogs
| العنوان: | Formation of NH2CHO and CH3CHO upon UV processing of interstellar ice analogs |
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| المؤلفون: | Karin I. Öberg, Mahesh Rajappan, Rafael Martín-Doménech |
| المصدر: | Proceedings of the International Astronomical Union. 15:417-419 |
| بيانات النشر: | Cambridge University Press (CUP), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Space and Planetary Science, Chemistry, Radical, Interstellar ice, Astronomy and Astrophysics, Irradiation, Early Earth, Photochemistry, Organic molecules |
| الوصف: | Complex organic molecules (COMs) may have played a role in the formation of life in the early Earth (Herbst & van Dishoeck (2009)). Here we present the formation of NH2CHO and CH3CHO upon vacuum-ultraviolet (VUV) irradiation of CO:NH3 and CO:CH4 ice mixtures, simulating the UV processing of interstellar ices in the interior of dense clouds. We have found that the conversion from ${\rm{N}}{{\rm{H}}_{\dot 2}}$ radicals to NH2CHO is 4–15 times higer than that from ${\rm{N}}{{\rm{H}}_{\dot 3}}$ to CH3CHO, probably due to the competing formation of larger hydrocarbons in the latter case. |
| تدمد: | 1743-9221 1743-9213 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::6bd118fb3a3f097fe86b47051e47c593Test https://doi.org/10.1017/s1743921319007804Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........6bd118fb3a3f097fe86b47051e47c593 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17439221 17439213 |
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