Astrophysics (index)

Emission Line Galaxy

(a galaxy type characterized by emission lines)

An Emission Line Galaxy (ELG) is a class of galaxies characterized by the presence of Emission Lines. The label is used for distant galaxies (i.e., with significant Redshift (z)) that fit the description. Other classifications are Absorption Line Galaxies and A+E Galaxies (featuring both).

Some typical emission lines are:

(galaxy type)

Referenced by:
Dark Energy Spectroscopic Instrument (DESI)