Workshop: Kinetic physics of astrophysical plasmas

Session

Shocks

19 mai 2026, 09:30

Bâtiment 20 Amphithéâtre (Montpellier)

Description

Invited speakers: A.R. Bell (Univ Oxford, UK), G Fichet de ClaireFontaine (Univ Valencia, Spain), P. Cristofari (LUX)

43. TBA

Dr Pierre Cristofari (Observatoire de Paris)

19/05/2026 09:30

44. Contribution 4

19/05/2026 10:10

45. Does the Bohm limit determine the maximum of energy of shock-accelerated cosmic rays?

Prof. Tony Bell (University of Oxford)

19/05/2026 11:00

Ever since the classic papers of Lagage & Cesarsky (1983) and Hillas (1984), the Bohm limit uBR has been taken as the measure of the maximum energy to which cosmic rays can be accelerated by shocks. The obvious problem in the 1980s was that the Bohm limit for supernova remnants fell well short of the knee in the spectrum at a few PeV. This problem appeared to be solved when fields of a few...

47. Contribution 5

19/05/2026 12:00

48. TBA

Dr Gaëtan Fichet de Clairfontaine (University of Würzburg)

19/05/2026 15:10

49. Contribution 6

19/05/2026 16:20

50. Discussion

19/05/2026 16:40

46. Contribution 6