The blazar BL Lacertae, a supermassive black hole surrounded by a bright disk and jets oriented toward Earth, provided ...

This is highly unusual, as electron scattering experiments typically use very thin targets along the beam axis, with the beam striking a broad surface perpendicular to its direction of propagation.

THE Thomson scattering of light by free electrons has ... and the intensity of light scattered from an optical maser beam.

"In disordered systems, electron-photon momentum matching amplifies interaction—an aspect previously associated only with high-energy—gamma—photons in classical Compton scattering.

Ultraintense lasers can produce high-energy γ-rays via nonlinear Compton scattering ... A laser-plasma electron beam generated using active energy compression demonstrates reduction in energy ...