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Portail > Offres > Offre UMR8109-SYLDES-054 - CHERCHEUR (H/F) recherche et caractérisation d'exoplanètes en imagerie directe

H/F Search for extrasolar planets in high contrast imaging

This offer is available in the following languages:
Français - Anglais

Date Limite Candidature : vendredi 7 octobre 2022

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General information

Reference : UMR8109-SYLDES-054
Workplace : MEUDON
Date of publication : Friday, September 16, 2022
Type of Contract : FTC Scientist
Contract Period : 24 months
Expected date of employment : 1 November 2022
Proportion of work : Full time
Remuneration : according to experience between 2743€ and 4339€ gross per month
Desired level of education : PhD
Experience required : Indifferent

Missions

One of the objectives of the COBREX ERC project is the direct detection and characte-rization of extrasolar planets in direct imaging. To do so, we will use new algorithms to analyse high contrast imaging data from a large set of archival and from future observations, in order to significantly push the current detection limits. In particular, our aim is to image exoplanets for the first time in the 5-10 au region, i.e. at the Jupi-ter to Saturn distances in the Solar System. To meet these objectives, you will lead an ambitious reduction and analysis programme, using hundreds of young stars, to search for and characterize new exoplanets, and you will analyse the results in the context of planet formation and evolution (comparison to models).

Activities

-- Testing and developing new high contrast imaging algorithms, including with machine learn-ing.
- Running these algorithms on large datasets.
- Interpreting the results: study of individual systems, characterisation of young exoplanets (at-mosphere and physical properties)
- Interpreting the results: statistical studies, comparison with planet formation models.
- High contrast imaging observations with the ESO VLT, JWST if needed, etc
- Astrophysical monitoring of the project within the team.
- Supervising students.

Skills

- PhD in astrophysics, planetary sciences or equivalent.
- Knowledge in statistical analysis (formalism, biases, algorithms)
- Knowledge in data reduction algorithm development and computation. Knowledge in AI (if possible).
- Languages: python (mandatory), idl (if possible), mathlab (if possible).
- Good background in Data Science required.
- Values: enthusiasm, tenacity, creativity, team spirit.

Work Context

The Post-doc will work at LESIA (Observatoire de Paris-Meudon). LESIA gathers in par-ticular experts in High Contrast Imaging, Interferometry, solar system planets and pla-netary science, disks, exoplanet atmospheres, solar physics, offering thus a rich scienti-fic environment.

The work will also be done in close collaboration with colleagues from IPAG (Grenoble), Centre de Recherche en Astrophysique de Lyon, and Observatoire de la Cote d'Azur.

The COBREX team currently gathers more than 10 permanent astronomers, a technical team, 4 PhD students and 1 post-doc. 2 additional post-docs are expected to join the team in 2022.

Regular visits to Grenoble, where the COBREX Data Center is located, will be necessary.

Working language is English or French. French is therefore not mandatory.

The Post-Doc will participate in observations to complete the available archival data, in particular with the ESO telescopes and with the JWST if needed.

Constraints and risks

none

Additional Information

expected experience : High Contrast Imaging

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