Study of The Photochemical and Electron-beam

il y a 2 semaines


Marseille, France Isabelle Couturier Temps plein

**Study of the photochemical and electron-beam evolution of Titan's atmospheric ices**:

- Réf **ABG-121696**
- Sujet de Thèse- 22/03/2024- Autre financement public- Isabelle Couturier- Lieu de travail- MARSEILLE - Provence-Alpes-Côte d'Azur - France- Intitulé du sujet- Study of the photochemical and electron-beam evolution of Titan's atmospheric ices- Champs scientifiques- Chimie
- Terre, univers, espace
- Mots clés- Photochemistry, TItan, Aerosol**Description du sujet**:

- **Laboratoire** : Physique des Interactions Ioniques et moléculaires (PIIM), UMR 7345, Aix Marseille Université, Centre de Saint Jérôme, case 252, 13397 Marseille cedex 20
- **Equipe** : ASTRO
- **Directeur de thèse** : Isabelle Couturier
- **Co-directeur** : Eric Quirico (IPAG Grenoble)

**PhD project summary**- The objective of this project is to study the aging of the ice formed in the lower stratosphere of Titan. For that, the student will have to take in hand the experimental device (PIIM) in order to condense the molecules present in the stratosphere while making them undergo the average UV radiations and electronic bombardments. In order to analyze the results, the student will use infrared spectrometry, UV spectrometry and very high-resolution mass spectrometry. The student will have to travel to Grenoble and Caen to carry out some experiments and model the interactions of aerosols with ion sources from both a qualitative and quantitative point of view, in particular the dN/dE flux density of GCRs in the atmosphere. ANR funding has already been secured for this project.**Références bibliographiques**:

- 1. I. Couturier-Tamburelli, M. S. Gudipati, A. Lignell, R. Jacovi, N. Piétri, Icarus 2014, 234, 81-90.
2. M. S. Gudipati, R. Jacovi, I. Couturier-Tamburelli, A. Lignell, M. Allen, Nat. Commun. 2013, 4, 1648.
3. J. Mouzay, I. Couturier-Tamburelli, N. Piétri, T. Chiavassa, J. Geophys. Res. Planets, 2021,126, e2020JE006566.
4. J. Mouzay, K. Henry, A. Ruf, I. Couturier-Tamburelli, G. Danger, N. Piétri and T. Chiavassa, 2021 Planet. Sci. J. 2 37.
5. I. Couturier-Tamburelli, G. Danger, J. Mouzay, C. Pardanaud & N. Piétri, 2024 The Journal of Physical Chemistry A** **128, 3, 636-645.**Prise de fonction**:

- 01/10/2024**Nature du financement**:

- Autre financement public**Précisions sur le financement**:

- ANR**Présentation établissement et labo d'accueil**:

- Isabelle CouturierUnité Mixte de Recherche entre le CNRS et Aix-Marseille Université localisée à Marseille, le laboratoire « Physique des Interactions Ioniques et Moléculaires » (PIIM) regroupe des physiciens et physico-chimistes qui étudient les milieux dilués que sont les gaz, plasmas, faisceaux d’ions, d’atomes et/ou de molécules, ainsi que leurs interactions avec la matière. Les travaux de ses chercheurs visent à comprendre les phénomènes physiques dans ces milieux pour notamment analyser et caractériser la matière.

**Site web**:
**Intitulé du doctorat**:

- Ecole Doctorale Sciences chimiques**Pays d'obtention du doctorat**:

- France**Etablissement délivrant le doctorat**:

- Aix-Marseille Université**Ecole doctorale**:

- ED 250**Thèse en cotutelle **:Oui
- **Pays d'obtention du doctorat en cotutelle**:

- France**Etablissement délivrant le doctorat en cotutelle**:

- Aix-Marseille Université-
- 10/06/2024



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