Astrophysics (Index)About

bolometric luminosity

(LBol, luminosity)
(total luminosity of an object at all wavelengths)

Bolometric luminosity (LBol) is an astronomical body's total power output across all EMR wavelengths. A bolometer is a device that measures incoming EMR at all wavelengths (or at least over a significant wavelength range), and luminosity is the power output of an astronomical body. The term luminosity, unqualified and devoid of a context that implies otherwise is generally used to mean bolometric luminosity. Bolometric magnitude is a logarithmic measure of the same value.

Further reading:

Referenced by pages:
A-type star (A)
B-type star (B)
F-type star (F)
G-type star (G)
hyperluminous infrared galaxy (HLIRG)
K-type star (K)
luminous infrared galaxy (LIRG)
luminosity (L)
M-type star (M)
monochromatic luminosity
O5 spectral type (O5)
O-type star (O)
Stefan-Boltzmann constant (σ)
ultraluminous infrared galaxy (ULIRG)
Wolf 359
Wolf-Rayet star