• Hubble Images of Quasars
  • X-ray Image of Quasar 3C 2723
  • Chandra X-ray Observatory
  • High Redshift Quasars
  • Sloan Digital Sky Survey
  • Active Galaxies and Violence in the Cosmos
  • Quasars and Active Galactic Nuclei
  • Optical Jet of M87
  • Optical Jets in Radio Galaxies
  • Radio Structure in Radio Galaxies
  • Seyfert Galaxy NGC 7742
  • Seyfert Nuclei
  • Selection of Seyfert Galaxies
  • Optical Spectra of Active Galactic Nuclei
  • Variability of Active Galactic Nuclei Spectra
  • Black Hole in a Spiral Galaxy
  • Supermassive Central Object in M87
  • Sombrero Galaxy M104
  • Radio Galaxy 3C295
  • Center of Centaurus A
  • X-ray Jet from Centaurus A