98.54.-h Quasars; active or peculiar galaxies, objects, and systems ( 0 Dok. )

• 98.54.Aj Quasars (for quasar absorption and emission-line systems; Lyman forest see 98.62.R) ( 0 Dok. )
• 98.54.Cm Active and peculiar galaxies and related systems (including BL Lacertae objects, blazars, Seyfert Galaxies, Markarian galaxies, and active galactic nuclei) ( 0 Dok. )
• 98.54.Ep Starburst galaxies and infrared excess galaxies ( 0 Dok. )
• 98.54.Gr Radio galaxies ( 0 Dok. )
• 98.54.Kt Protogalaxies; primordial galaxies ( 0 Dok. )