تقرير
The efficient photodesorption of nitric oxide (NO) ices A laboratory astrophysics study
| العنوان: | The efficient photodesorption of nitric oxide (NO) ices A laboratory astrophysics study |
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| المؤلفون: | Dupuy, R., Féraud, G., Bertin, M., Michaut, X., Putaud, T., Jeseck, P., Philippe, L., Romanzin, C., Baglin, V., Cimino, R., Fillion, J. -H. |
| سنة النشر: | 2017 |
| المجموعة: | Astrophysics Physics (Other) |
| مصطلحات موضوعية: | Astrophysics - Astrophysics of Galaxies, Astrophysics - Solar and Stellar Astrophysics, Physics - Chemical Physics |
| الوصف: | The study and quantification of UV photon-induced desorption of frozen molecules furthers our understanding of the chemical evolution of cold interstellar regions. Nitric oxide (NO) is an important intermediate species in both gas-phase and solid-phase chemical networks. In this work, we present quantitative measurements of the photodesorption of a pure NO ice.We used the tunable monochromatic synchrotron light of the DESIRS beamline of the SOLEIL facility near Paris to irradiate NO ices in the 6 - 13.6 eV range and measured desorption by quadrupole mass spectrometry.We find that NO photodesorption is very efficient, its yield being around 1e-2 molecule per incident photon for UV fields relevant to the diffuse and dense interstellar medium. We discuss the extrapolation of our results to an astrophysical context and we compare photodesorption of NO to previously studied molecules. Comment: A&A, Accepted |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1051/0004-6361/201731653 |
| URL الوصول: | http://arxiv.org/abs/1710.01028 |
| رقم الأكسشن: | edsarx.1710.01028 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1051/0004-6361/201731653 |
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