interstellar molecule
preferred label: مولکول میان‌ستاره‌ای @fa
type: Concept
related: astronomical maser

radiosource (astronomical)
preferred label: چشمه رادیویی (نجومی) @fa
type: Concept
narrower: astronomical maser

maser
preferred label: میزر @fa
type: Concept
related: astronomical maser

astronomical maser
alternative label: OH Type IIa sources
related: OH-IR star
related: interstellar molecule
related: maser
broader: radiosource (astronomical)
preferred label: میزر نجومی @fa
type: Concept

OH-IR star
preferred label: ستاره او.اچ-آی.ار @fa
type: Concept
related: astronomical maser