"This particular object radiates only faintly in the energy region where gamma rays have an energy of a few hundred million electron volts," explains Gaidos. "This is the region where the detector on ...

In late 2022, gamma-ray activity of 3C 216 started to increase ... 3C 216 can be interpreted as an outburst of synchrotron self-Compton (SSC) radiation. Such an outburst is likely associated ...