accretion disk
preferred label: قرص برافزایشی @fa
type: Concept
related: galactic nucleus

galaxy
preferred label: کهکشان @fa
type: Concept
narrower: galactic nucleus

Galactic centre
preferred label: مرکز کهکشان @fa
type: Concept
broader: galactic nucleus

active galaxy
preferred label: کهکشان فعال @fa
type: Concept
related: galactic nucleus

galactic nucleus
related: black hole
related: Seyfert galaxy
related: radiogalaxy
related: quasar
related: accretion disk
related: active galaxy
alternative label: superluminal motion
broader: galaxy
preferred label: هسته کهکشانی @fa
narrower: Galactic centre
type: Concept

radiogalaxy
preferred label: کهکشان رادیویی @fa
type: Concept
related: galactic nucleus

black hole
preferred label: سیاه‌چاله @fa
type: Concept
related: galactic nucleus

quasar
preferred label: اختروش @fa
type: Concept
related: galactic nucleus

Seyfert galaxy
preferred label: کهکشان سیه‌چشم @fa
type: Concept
related: galactic nucleus