How and where particles are accelerated in jets?

I investigate shocks’ formation, evolution, and efficiency to understand what role they play in high energy emission processes.
I use data from very-large base interferometry arrays (VLBI), X-rays, and gamma rays (archival data and new analysis). Through a collaboration with a team of the Paris Observatory we also study these shocks via MHD simulations of relativistic jets.

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Relevant publications:

• G. Fichet de Clairfontaine, Z. Meliani, A. Zech, and O. Hervet (Corresponding author). Flux variability from
  ejecta in structured relativistic jets with large-scale magnetic fields. A&A, 647:A77, March 2021. https://ui.adsabs.harvard.edu/abs/2021A&A...647A..77F

• O. Hervet, D. A. Williams, A. D. Falcone, and A. Kaur. Probing an X-Ray Flare Pattern in Mrk 421 Induced by
  Multiple Stationary Shocks: A Solution to the Bulk Lorentz Factor Crisis. ApJ, 877(1):26, May 2019. https://ui.adsabs.harvard.edu/abs/2019ApJ...877...26H

• O. Hervet, Z. Meliani, A. Zech, et al. Shocks in relativistic transverse stratified jets. A new paradigm for radio-
  loud AGN. A&A, 606:A103, October 2017. https://ui.adsabs.harvard.edu/abs/2017A&A...606A.103H

• O. Hervet, C. Boisson, and H. Sol. An innovative blazar classification based on radio jet kinematics. A&A,
  592:A22, July 2016. https://ui.adsabs.harvard.edu/abs/2016A&A...592A..22H