Revisiting EBL Constraints from Gamma-Ray Observations: A Critical Assessment and Methodological Improvements
The extragalactic background light (EBL), ranging from the infrared to the ultraviolet bands, is the second most intense photon field in the universe, surpassed only by the cosmic microwave background (CMB). It is primarily generated by starlight in galaxies, either directly or through absorption by dust and re-emiss...