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Pair Production in AGN
1989
Symposium - International astronomical union
The X-ray luminosity and variability of many AGN are sufficiently extreme that any hard γ-rays produced in the source will collide with the X-rays and create electron-positron pairs, rather than escape. A small region where vast amounts of energy are produced, such as an AGN, is an ideal place to accelerate particles to relativistic energies and so produce γ-rays by Compton scattering. The observed X-ray spectra of AGN are hard and indicate that most of the luminosity is at the highest energies
doi:10.1017/s007418090014080x
fatcat:wfdihqyx3fgxzpjjisi3abvgcm