Postdoc position at CEA Paris-Saclay : characterisation of exoplanet atmospheres with the JWST

The Postdoc will develop the following activities in order of importance:
- Reduction and analysis of data from observations of exoplanets in transit with the JWST and in particular the MIRI instrument. Optimisation of reduction methods; comparison of different analysis methods. Monitoring of MIRI performance. Publication of results.
- Participation in JWST observing proposals (Cycle 2 and 3) to characterize exoplanet atmospheres .
- Participation in the ARIEL working group on synergies between JWST and Ariel.

The post-doc should play a leading role within AIM for the scientific exploitation of the JWST in the field of characterizing the atmosphere of transiting exoplanets.

The host laboratory is the AIM (Astrophysics Instrumentation Modelisation) laboratory. It is located at CEA Paris-Saclay, a research centre located 25 km south-west of Paris and part of the Université Paris-Saclay. Approximately 200 people participate in AIM activities that include instrumental developments, including space missions, data analysis and interpretation, and modelling, from numerical simulations on massively parallel computers.
The laboratory is involved in most of Astrophysics's major space missions (in operation: SOHO, INTEGRAL, XMM, Fermi, Solar Orbiter, JWST; in development: EUCLID, SVOM, Plato, Ariel, Athena). and also in instrumentation for ground-based telescopes (VLT/VISIR, APEX/ARTEMIS, ELT/METIS, CTA, ...).
The successful candidate will join the team entitled 'Dynamics of Stars, Exoplanets and their Environment' which comprises about fifteen people. The team is heavily involved in the JWST MIRI instrument and is coordinating the exoplanet observing programme as part of the guaranteed time of the European MIRI consortium. The work is done through international collaborations. He or she will have at his or her disposal a laptop computer, will have access to a recent cluster with 1792 cores and will benefit from a budget for collaborative missions and to participate in conferences.