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Portail > Offres > Offre UMR5821-CHRVEL-091 - chercheur en Astroparticules Nature et origine des rayons cosmiques aux plus hautes énergies (H/F)

Researcher in astroparticle physics Nature and origin of the ultra-high energy cosmic rays (M/W)

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

Date Limite Candidature : mardi 8 juin 2021

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General information

Reference : UMR5821-CHRVEL-091
Workplace : GRENOBLE
Date of publication : Tuesday, April 27, 2021
Type of Contract : FTC Scientist
Contract Period : 24 months
Expected date of employment : 1 September 2021
Proportion of work : Full time
Remuneration : Per 2648,79 euros groos et 3768.24 euros gross according to experience
Desired level of education : PhD
Experience required : 1 to 4 years


The successful candidate will join the research group of the LPSC focused on the study of UHECRs with the Pierre Auger Observatory. The postdoctoral researcher will work in close collaboration with the research team from the IJCLab, and also with the teams in Universities of Bochum and Wuppertal, in a common project funded by the ANR (France) and DFG (Germany) agencies. The Franco-German joint project is dedicated to multi-messenger analyses aimed at identifying the sources of UHECRs. It consists of a study of bursting astrophysical sources, in particular gamma-ray bursts and flaring AGNs, to predict the UHECR sky as a function of energy and primary mass and to constrain the origin of UHECRs on the basis of the largest datasets acquired to this day. The study of the secondary fluxes of neutrinos and gamma rays will provide a powerful test of the most suitable astrophysical scenario.


Specific objectives of this project at LPSC and IJCLab:
- to develop a framework for analyzing public data from UHECR observatories, combining spectral, composition and arrival-direction observables
- to model the flux of secondary gamma rays from UHECR sources for CTA.
Main activities:
● Development of combined fit algorithms
● Development of data reconstruction algorithms
● Taking responsibilities in the data analysis
● Being an active member of the Auger collaboration


Applicants must have a PhD or equivalent degree in astroparticle physics or related fields.
- Knowledge in non-thermal astrophysical modeling and / or data analysis
- Knowledge of statistical analysis (concepts and tools).
- Proficiency in software tools and modern programming languages commonly associated with high energy physics t (C++, Python, …)
- Demonstrated ability to carry out collaborative research, ability to work with large teams in an international environment
- Capable of autonomy and initiative to lead a research work
- Excellent English level

Work Context

The Laboratory of Subatomic Physics & Cosmology (LPSC) (http://lpsc.in2p3.fr) is a mixed research unit associating the CNRS-IN2P3, the University Grenoble Alpes (UGA) and the Grenoble INP school, for an average workforce of about 230 people. The recruited postdoc will be a member of the AUGER research team (three researchers, one PhD student), member of the international collaboration Pierre Auger for 15 years.
As members of the international Pierre Auger Collaboration, the postdoctoral researcher will also participate in the analysis and interpretation of the data collected with the Pierre Auger Observatory. Research visits to the Observatory in Argentina and to collaborating institutes are planned.
Both LPSC and IJCLab laboratories, partners of the project, are involved in cutting-edge research in the fields of ultra-high-energy cosmic-ray physics, gamma-ray astronomy, cosmology, high-energy physics and nuclear physics. Excellent infrastructure and IT resources are provided. More information can be obtained at http://lpsc.in2p3.fr/index.php/en/ and https://www.ijclab.in2p3.fr/en

Additional Information

Experienced applicants with more than two years of postdoctoral work will be favored, but applications from excellent candidates with less experience will also be carefully considered. Another postdoctoral position is opened at IJCLab, a single joint selection process is organised for the 2 positions.
In addition to a cover letter and a CV, the candidate will be required to submit a list of publications, letters of recommendation will be appreciated.
Included Benefits: French national health insurance, Maternity / paternity leave, Participation in lunch cost, Family supplement for children, Participation in public transport costs, Pension contributions.

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