CNRS, Aix Marseille Univ, CNRS/IN2P3,CPPM

Position ID:CNRS-Aix Marseille Univ, CNRS/IN2P3,CPPM-POSTDOC [#27471]
Position Title: Postdoctoral Researcher in Numerical Modeling of Space Instruments with Machine Learning for the Euclid Mission
Position Type:Postdoctoral
Position Location:Marseille, Provence-Alpes-Cote d'Azur 13009, France [map] sort by distance
Subject Areas: Instrumentation / Optical Engineering
Machine Learning / Data Science
Modeling & Simulation
Astrophysics & Cosmology
Appl Deadline:2024/09/01 11:59PMhelp popup (posted 2024/04/09, listed until 2024/10/05)
Position Description:   URMs  

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Mission :

The Euclid space mission (https://www.euclid-ec.org) was launched on July 1st, marking the beginning of a new era in cosmological research. In this regard, we announce the opening of a post-doctoral research position in machine learning for modeling the instrumental response of the NISP instrument.

The NISP instrument is a slitless spectrometer consisting of the largest infrared focal plane sent into space to date. With its wide field of view, at each sky exposure, the NISP captures the spectrogram of thousand of sources within few minutes and over an angular surface equivalent to the apparent size of the Moon. The instrument's extensive field of view, combined with  numerous sources which, due to the slitless spectroscopy, contaminates each other, poses a challenge for conventional simulators to realistically model the images necessary for scientific analysis.

Advancements in generative Machine Learning methods offer new application prospects. The ANR DISPERS project (2022-2026, https://dispers.in2p3.fr/) aims to develop slitless spectroscopy simulation tools based on deep learning for the Euclid space mission and future large cosmological surveys. This initiative opens new opportunities for planning cosmological surveys, analyzing instrumental error sources, and applying methods used for spectrum decontamination.

The selected candidate will play a central role in developing an innovative simulation tool aimed at transforming the way slitless spectroscopy images are analyzed. The simulator's primary objective is to realistically model the response of the NISP instrument, leveraging recent machine learning algorithms, advanced statistical techniques, and numerical optimization formalisms. The objectives is to create precise simulations capturing the subtleties of both instrumental and astronomical phenomena, contributing to enhancing our understanding of Euclid data and future slitless spectroscopy survey. 

Activities:
The postdoctoral researcher will specifically contribute to various aspects of the project:

Skills:

Work Context:

Located in the heart of the Calanques National Park, on the Luminy campus, CPPM is a research laboratory jointly affiliated with CNRS (National Center for Scientific Research) and Aix-Marseille University. It comprises approximately 180 researchers, engineers, and doctoral students. The laboratory conducts research spanning from particle physics to astroparticle physics and cosmology, with strong technological expertise in electronics, mechanics, instrumentation, and computer science. This expertise enables the design and construction of cutting-edge detection systems, often required to operate under extreme conditions: in the depths of the sea, in space, or underground. Most of our research is carried out within leading international scientific collaborations, and our contributions are recognized worldwide. CPPM is committed to conducting ethical research and promoting diversity and inclusion in the workplace. The laboratory provides administrative and logistical support to newcomers, especially doctoral students. (For more details, visit: CPPM Website https://www.cppm.in2p3.fr/web/fr/index.html).

The Renoir team at CPPM consists of 10 permanent researchers, 4 engineers, 3 postdoctoral researchers, and 7 doctoral students. The position is funded by the ANR DISPERS project for a duration of exactly 2 years.

Travel may be required as part of the planned activities.

General information:



Application Materials Required:
Submit the following items online at this website to complete your application:
And anything else requested in the position description.

Further Info:
https://dispers.in2p3.fr/
email address
+33 491827667
 
Centre de Physique des Particules de Marseille
163, avenue de Luminy
Case 902
13288 Marseille cedex 09