What are the radiative processes in AGN, where are the main emission zones?

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Once particles are accelerated, they produce non-thermal photons. These photons will then interact with the complex radiative environment of the AGN until they escape through the cosmos.

My work is focused on the modeling and interpretation of the spectral energy distribution of jetted AGN.
I also developed tools for the scientific community, fully available on Github and Zenodo:

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• Bjet_MCMC

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• SED_Host_Galaxy_Correction

Code to remove the elliptical host galaxy emission in IR-to-UV SEDs of AGN. This code makes use of PEGASE 2 spectral templates of galaxies Fioc & Rocca-Volmerange 1999.

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Github: https://github.com/Ohervet/SED_Host_Galaxy_Correction

Zenodo: https://zenodo.org/records/10800919

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Relevant publications:

• O. Hervet, C. A. Johnson, and A. Youngquist. Bjet_mcmc: A new tool to automatically fit the broadband spec-
  tral energy distributions of blazars. ApJ, 962(2):140, feb 2024. https://dx.doi.org/10.3847/1538-4357/ad09c0

• C. B. Adams, J. Batshoun, W. Benbow, (O. Hervet corresponding author), et al. Variability and Spectral
  Characteristics of Three Flaring Gamma-Ray Quasars Observed by VERITAS and Fermi-LAT. ApJ, 924(2):95,
  January 2022. https://ui.adsabs.harvard.edu/abs/2022ApJ...924...95A
• J. Valverde, D. Horan, D. Bernard, (O. Hervet corresponding author), et al. A Decade of Multiwavelength
  Observations of the TeV Blazar 1ES 1215+303: Extreme Shift of the Synchrotron Peak Frequency and Long-
  term Optical-Gamma-Ray Flux Increase. ApJ, 891(2):170, March 2020. https://ui.adsabs.harvard.edu/abs/2020ApJ...891..170V
• A. Archer, W. Benbow, R. Bird, (O. Hervet corresponding author), et al. HESS J1943+213: An Extreme Blazar
  Shining through the Galactic Plane. ApJ, 862:41, July 2018. http://adsabs.harvard.edu/abs/2018ApJ...862...41A
• H.E.S.S. Collaboration, H. Abdalla, A. Abramowski, (O. Hervet corresponding author), et al. H.E.S.S. discovery of very high energy γ-ray emission from PKS 0625-354. MNRAS, 476:4187–4198, May 2018. http://adsabs.harvard.edu/abs/2018MNRAS.476.4187H
• A. U. Abeysekara, W. Benbow, R. Bird, (O. Hervet corresponding author), et al. Multiwavelength Ob-
  servations of the Blazar BL Lacertae: A New Fast TeV Gamma-Ray Flare. ApJ, 856:95, April 2018. http://adsabs.harvard.edu/abs/2018ApJ...856...95A
• O. Hervet, C. Boisson, and H. Sol. Linking radio and gamma-ray emission in Ap Librae. A&A, 578:A69, June
  2015. https://ui.adsabs.harvard.edu/abs/2015A&A...578A..69H