Discovery of gamma-ray emission from a strongly lobe-dominated quasar 3C 275.1

Understand

We systematically analyze the 6-year {\it Fermi}/LAT data of the lobe-dominated quasars (LDQs) in the complete LDQ sample from 3CRR survey and report the discovery of high-energy $\gamma$-ray emission from 3C 275.1.

• The $\gamma$-ray emission of 3C 207 is confirmed and significant variability of the lightcurve is identified.
• We do not find statistically significant $\gamma$-ray emission from other LDQs.
• 3C 275.1 is the known $\gamma$-ray quasar with the lowest core dominance parameter (i.e., $R=0.11$).