The emission from a blackbody,
where is the
Planck function, is the azimuthal angle, is the polar angle, and is a differential element of solid angle. The units are J Hz
-1 m
-2 s
-1.
The radio astronomical unit of flux is the Jansky.
Flux, Jansky, Planck Function
© 1996-2007 Eric W. Weisstein
