Date: Fri, 22 Nov 2002 16:54:05 -0500

Author: "Tom Gill"

Subject: Re: Candles and Celestial Spheres


> >1. Is the light from a candle flame only from the blackbody emission
> >spectrum?


Together, the polymerized fuel and carbon particles make up soot. And when
the soot is formed, it is very hot, and emits a great deal of blackbody
radiation. This radiation appears reddish-orangish-yellowish. Chemical
reactions in the flame plasma also emit radiation, so the emission spectrum
of a complete candle flame can be quite complex. However, the characteristic
continuum spectrum of the blackbody radiation from the soot is the dominant