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Portail > Offres > Offre UMR7164-KEVVEL-007 - Postdoctorant (H/F) - Analyse et exploitation scientifique des données du fond diffus cosmologique produites par l'expérience au sol de nouvelle génération Simons Observatory

Postdoctoral position - Analysis and scientific exploitation of cosmic microwave background data produced by the Simons Observatory next generation ground experiment (M/W)

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

Date Limite Candidature : mercredi 8 février 2023

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General information

Reference : UMR7164-KEVVEL-007
Nombre de Postes : 1
Workplace : PARIS 13
Date of publication : Tuesday, January 17, 2023
Type of Contract : FTC Scientist
Contract Period : 36 months
Expected date of employment : 1 September 2023
Proportion of work : Full time
Remuneration : Between 2889.51 and 4082.90€ gross monthly depending on experience.
Desired level of education : PhD
Experience required : Indifferent


Join the APC Scipol team to develop a visible and active contribution to the cosmic microwave background data analysis within the international Simons Observatory collaboration.


- Development of numerical tools and algorithms for the analysis of cosmic microwave background data, validation and applications to simulated and real data in collaboration with the SciPol team at APC ans the Simons Observatory collaboration.
- Regular progress reports during weekly group meetings.
- Participation in weekly teleconferences and collaboration meetings.
- Preparation for the dissemination of numerical tools (internal and/or public).
- Preparation of documentation for numerical tools.
- Presentation of the results during workshops and conferences.


- Knowledge of the cosmological context, programming languages : C, Python, C++, basic numerical and statistical methods, applied linear algebra.
- Ability to develop and validate advanced numerical codes, ability to use computers and understanding of the computing environment.
- Ability to collaborate and interact with other members of the group, to communicate on the progress of the work and the problems encountered, to contribute to the daily life of the group, to respect others and their work.

Work Context

The Simons Observatory is an array of CMB telescopes installed at an altitude of 5,200m in the Atacama desert which will achieve its first light in 2024. The "Small Aperture Telescopes" aim to constrain inflationary signals with high instrumental sensitivity — their data will be at the heart of the postdoctoral work.
The European SciPol project ( PI : J. Errard) started in January 2023 and will last for 5 years. It supports the development of new data analysis techniques aimed at robustly and accurately characterizing CMB polarization at large angular scales, and in particular the primordial B-modes generated by hypothetical inflationary gravitational waves.
The project thus proposes a modeling, a presice characterization and subtraction of the instrumental effects, as well as the astrophysical and environmental contaminations. This involves the analysis of large volumes of data and the development of robust and numerically efficient algorithms.
The postdoctoral fellow will interact with the members of the SciPol team (1 permanent, 4 doctoral students, 1 engineer, 5 external collaborators) and SO of the APC, as well as with the members of the cosmology group of the APC.

Constraints and risks

Missions in France and abroad are possible, within the framework of exchanges with our collaborators on the project, but also to participate in conferences.

Additional Information

references : simonsobservatory.org ; scipol.in2p3.fr

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