The efficient photodesorption of nitric oxide (NO) ices. A laboratory astrophysics study

Abstract : 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 monochro-matic 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 10 −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.
Document type :
Journal articles
Complete list of metadatas

Cited literature [44 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01609914
Contributor : Géraldine Féraud <>
Submitted on : Monday, October 9, 2017 - 1:47:22 PM
Last modification on : Tuesday, May 14, 2019 - 10:37:49 AM
Long-term archiving on : Wednesday, January 10, 2018 - 12:38:43 PM

File

31653_corr_sent.pdf
Files produced by the author(s)

Identifiers

Citation

Rémi Dupuy, Géraldine Féraud, Mathieu Bertin, Xavier Michaut, Thomas Putaud, et al.. The efficient photodesorption of nitric oxide (NO) ices. A laboratory astrophysics study. Astronomy and Astrophysics - A&A, EDP Sciences, 2017, ⟨10.1051/0004-6361/201731653⟩. ⟨hal-01609914⟩

Share

Metrics

Record views

560

Files downloads

110