PKS 2123−463: a confirmed γ-ray blazar at high redshift
PKS 2123−463: a confirmed γ-ray blazar at high redshift
The flat spectrum radio quasar (FSRQ) PKS 2123-463 was associated in the First Fermi-LAT source catalog with the gamma-ray source 1FGL J2126.1-4603, but when considering the full first two years of Fermi observations, no gamma-ray source at a position consistent with this FSRQ was detected, and thus PKS 2123-463 was …