3 papers
astro-ph.HE2026
Optical spectroscopy of the VHE flat-spectrum radio quasar PKS 0903-57
E. Kasai, P. Goldoni, C. Boisson +5
We report new optical spectroscopic results for the gamma-ray blazar PKS~090357. The optical properties of this source have historically been complicated to establish, due to a…
astro-ph.HE2026
Spectroscopic Analysis of Fermi-detected Blazars using SDSS-V
Mohammed Iddrisu Nlowie, James Aird, Eli Kasai +17
The automated spectroscopic pipeline of the Sloan Digital Sky Survey (SDSS) systematically assigns Galactic star, galaxy, or typical quasar classifications to jet-dominated blazars…
astro-ph.HE2023
Investigating the Lorentz Invariance Violation effect using different cosmological backgrounds
Hassan Abdalla, Garret Cotter, Michael Backes +2
Familiar concepts in physics, such as Lorentz symmetry, are expected to be broken at energies approaching the Planck energy scale as predicted by several quantum-gravity theories.…