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Accueil du site > Jobs - PostDoc - These > PhD positions in astrochemistry at University of Le Havre Normandie

PhD positions in astrochemistry at University of Le Havre Normandie

par Nord & Ile de France - 15 avril

Two PhD positions in the field of astrochemistry and molecular astrophysics are available at University of Le Havre Normandie (France) under the supervision of François Lique.

The first PhD project will be devoted to the study of the collisional excitation of reactive hydrides in the framework of the COLLEXISM project. COLLEXSIM is an ERC consolidator Grant project set to develop a new theoretical approach to study the collisional energy transfer in reactive systems of astrophysical interest. In this project, we plan to set up a new methodology based on quantum approach that allows obtaining accurate collisional rate coefficients, essential for accurately determining the molecular abundance in the interstellar medium. We will carry out the determination of interaction potentials using quantum chemistry ab initio methods while the treatment of the dynamics of the nuclei will primarily be done using quantum time-independent reactive and non-reactive approaches. The new collisional data will then be used in radiative transfer models and the predictions will be finally compared to observations in order to derive the abundances of reactive radicals with unprecedented accuracy.

The second PhD project will be devoted to the study of the spectroscopy and collisional energy transfer in water containing aggregates. Water is the dominant species in the coma of comets and is ubiquitous in the interstellar medium. It is then crucial to study the interaction of water with interstellar and cometary molecules. We plan to spectroscopically characterize the X-H2O (X=CO, HF, CN) van der Waals complexes and to study the collisional energy transfer in these complexes. As for the first project, we will carry out the determination of interaction potentials using quantum chemistry ab initio methods. The dynamics will be studied using both quantum and statistical approaches.

The two projects will be performed in close collaborations with Alexandre Faure and Pierre Hily Blant from the observatory of Grenoble (France).

The successful candidates will have a strong background in fundamental physics or astrophysics. He/She must have a good knowledge of atomic and molecular physics and a good knowledge of programming tools.

Starting September 2019 for a period of 3 years. Salary : 1400 euros / month - health insurance included

Inquiries and applications, including a CV should be addressed to François Lique

Mail : francois.lique@univ-lehavre.fr

Web : https://sites.google.com/site/francoislique/