Astrophysics (index)

Luminous Infrared Galaxy

(a galaxy emitting a lot of far-infrared light)

A Luminous Infrared (IR) Galaxy (LIRG) is a Galaxy emitting more than 1011 times solar Luminosity (L) in the Far Infrared (FIR).

They are often a Starburst Galaxy and/or have an Active Galactic Nucleus (AGN) or a Quasar (QSO). Variations:

(galaxy type,infrared)

Referenced by:
Hyperluminous Infrared Galaxy (HLIRG)
Ultraluminous Infrared Galaxy (ULIRG)