<i>ASCA</i>Observations of Seyfert 1 Galaxies. II. Relativistic Iron Kα Emission
<i>ASCA</i>Observations of Seyfert 1 Galaxies. II. Relativistic Iron Kα Emission
We present evidence for widespread relativistic effects in the central regions of active galactic nuclei. In a sample of 18 Seyfert 1 galaxies observed by ASCA, 14 show an iron Kα line that is resolved, with mean width σKα = 0.43 ± 0.12 keV for a Gaussian profile (full width …