Bethe–Heitler Cascades and Hard Gamma-Ray Spectra in Flaring TeV Blazars: 1ES 0414009 and 1ES 1959650
In this work, we present updated models of the spectral energy distributions (SEDs) for two high-frequency-peaked BL Lac objects (HBLs), that is, 1ES 0414+009 and 1ES 1959+650. The hard gamma-ray spectra observed during their flaring states suggest the presence of an additional emission component beyond the standard synchrotron self-Compton (SSC) scenario. We explore the possibility that this hard gamma-ray emission arises from inverse Compton (IC) scattering by Bethe–Heitler pairs produced along the line of sight, pointing to a more complex high-energy emission mechanism in these sources.
Authors
- R. C. dos Anjos (ORCID: https://orcid.org/0000-0002-6463-2272)
- Samuel Victor Bernardo da Silva (ORCID: https://orcid.org/0009-0004-1525-8079)
- Luiz Augusto Pereira (ORCID: https://orcid.org/0000-0002-3263-3203)
Institutions
- Universidade Estadual de Londrina (BR)
- Universidade Tecnológica Federal do Paraná (BR)
- Universidade Federal da Integração Latino-Americana (BR)
- Universidade de São Paulo (BR)
- Universidade Federal de Campina Grande (BR)
- Max Planck Institute for Nuclear Physics (DE)
- Universidade Federal do Espírito Santo (BR)
- Universidade Federal do Paraná (BR)
Publication Details
- Journal
- Universe
- Published
- 2025-05-31
- DOI
- https://doi.org/10.3390/universe11060177
- Primary Topic
- Astrophysics and Cosmic Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação Araucária