Numerical Simulation Of The Acceleration Of Energetic Particles In Association With Coronal Mass...

Universities and Institutes of France
September 29, 2022
Contact:N/A
Offerd Salary:Negotiation
Location:N/A
Working address:N/A
Contract Type:Temporary
Working Time:Full time
Working type:N/A
Job Ref.:N/A
  • Organisation/Company: CNRS
  • Research Field: Astronomy › Astrophysics Astronomy › Cosmology
  • Researcher Profile: First Stage Researcher (R1)
  • Application Deadline: 29/09/2022 23:59 - Europe/Brussels
  • Location: France › MEUDON
  • Type Of Contract: Temporary
  • Job Status: Full-time
  • Hours Per Week: 35
  • Offer Starting Date: 01/11/2022
  • LESIA is a laboratory of the Paris Observatory which is itself an institute of PSL university. LESIA is also a mixed research unit of the CNRS. It counts roughly 200 employees and is located in Meudon. The PhD student will work within the Heliosphere and Astrophysical Plasmas (HPA) division.

    The sun sporadically ejects bubbles of plasma of an initial characteristic size of the order of the radius of the Sun. These huge bubbles of plasma called coronal mass ejections (CME) expand at speeds of several hundred km/s invading large areas of the heliosphere with measurable effects up to distances of several tens of astronomical units from the Sun. Coronal mass ejections are the consequence of sudden rearrangements of the magnetic field in the solar corona and are sometimes associated with an increase in the flux of energetic particles of solar origin observed at 1 AU. On Earth, at ground level, the frequency of these burst of energetic particles is of the order of once a year. It is generally accepted that these energetic particles, which can reach energies of the order of GeV, are accelerated in the solar corona, near the birth location of the CME, or at the shock formed by the interaction of the ejected plasma bubble with the surrounding solar wind. The objective of the thesis is to simulate the expansion and propagation of the CME with the MPI-AMRVAC code (described in detail on the amrvac.org site) and to use the test particle technique to simulate the acceleration and the propagation of high energy particles.

    Web site for additional job details

    https: // emploi.cnrs.fr/Offres/Doctorant/UMR8109-SYLDES-053/Default.aspx

    Required Research Experiences
  • RESEARCH FIELD
  • Astronomy

  • YEARS OF RESEARCH EXPERIENCE
  • None

  • RESEARCH FIELD
  • Astronomy › Astrophysics

  • YEARS OF RESEARCH EXPERIENCE
  • None

  • RESEARCH FIELD
  • Astronomy › Cosmology

  • YEARS OF RESEARCH EXPERIENCE
  • None

    Offer Requirements
  • REQUIRED EDUCATION LEVEL
  • Astronomy: Master Degree or equivalent

  • REQUIRED LANGUAGES
  • FRENCH: Basic

    Contact Information
  • Organisation/Company: CNRS
  • Department: Laboratoire d'études spatiales et d'instrumentation en astrophysique
  • Organisation Type: Public Research Institution
  • Website: https:// www. lesia.obspm.fr
  • Country: France
  • City: MEUDON
  • From this employer

    Recent blogs

    Recent news