Astrophysics (index)

Extragalactic Background Light

(electromagnetic radiation from star formation and AGNs)

The term Extragalactic Background Light (EBL) typically refers to Cosmic Background Radiation (CBR) over a range of Wavelengths including Visible Light (the Cosmic Optical Background (COB)) and more on each end: typically 0.1 and 1000um, spanning a range from the Cosmic Microwave Background (CMB) into Ultraviolet (UV).

EBL is difficult to measure because of galactic sources of Flux.

0.1um3.0PHz12eVbeginExtragalactic Background Light
1000um300GHz1.3meVendExtragalactic Background Light

Referenced by:
Cosmic Background Radiation (CBR)