Post-doc researcher in heliospheric plasma physics (M/F)
New
- Researcher in FTC
- 6 months
- Doctorate
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
Laboratoire d'Instrumentation et de Recherche en Astrophysique
Contract Type
Researcher in FTC
Working hHours
Full Time
Workplace
92190 MEUDON
Contract Duration
6 months
Date of Hire
01/12/2026
Remuneration
Depending on experience, between €3,132 and €4,808 gross per month
Apply Application Deadline : 04 November 2026 23:59
Job Description
Missions
The mission of the post-doc researcher will be to investigate the acceleration and propagation of energetic electrons during solar flares using data from the Solar Orbiter mission.
Understanding how energetic electrons produced in solar flares fill the heliosphere is one of the key questions of Solar Orbiter. The post-doc will directly contribute to this topic by analysing the radio diagnostics of the energetic electrons escaping from the solar surface to the interplanetary medium. These energetic electrons produce Langmuir waves while propagating along the interplanetary magnetic field lines which are converted via non-linear processes to radio electromagnetic radiation.
The analysis of these emissions provide information on the characteristics of the electron beams in the interplanetary medium (velocity, number) but also on the conditions of propagation of the radio electromagnetic radiation itself, since the radio emission can be scattered in the turbulent interplanetary medium.
Activity
The post-doc researcher will work on the catalog of « type III » radio emissions produced by electron beams and observed by the RPW instrument (more than 15000 bursts). He/she will develop a method to automatically analyse the detailed time evolution of the radio emission at different frequencies so as derive distributions of electron beam velocities at the start, peak and in the decacy of the emissions. These distributions will be compared with the results of simulations of radio emissions and will also be used to estimate the effect of wave scattering in the interplanetary medium.
Your Profil
Skills
- To have a Phd in astrophysics or equivalent
- To have a good knowledge in radio instrumentation
- To have a good knowledge in python
- To have good capacities in communication and work in teams, to have motivation to contribute to a constructive, collaborative and positive working atmosphere.
- To be autonomous and to be willing to take initiatives.
Your Work Environment
The post-doc researcher will work in the team « Helioshhere and Astrophysical Plasmas) at LIRA. The work will take place in the Meudon site of the Paris Observatory.
The researcher will report directly to Milan Maksimovic.
The team has a long experience in the study of heliospheric plasmas and in the field of radio-instrumentation. Members of the team are strongly involved in the scientific analysis of Solar Orbiter and in particular of the RPW instrument (plasma and radio wave experiment).
Compensation and benefits
Compensation
Depending on experience, between €3,132 and €4,808 gross per month
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UMR8254-SYLDES-034 |
|---|---|
| CN Section(s) / Research Area | Astrophysics |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
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