Spectral line strenght

What factors would influence the strenght of spectral lines ?

On Wed, 9 Feb 2005 15:52:06 -0000, Maximus wrote:

What factors would influence the strenght of spectral lines ?

You might think of _intensity_ of spectral line (=total energy at this
frequency band)
1. number of (potentially) excited atoms/nucleus ready to release their
energy by emmision of the photon;
2. probability of above mentioned process,
3. possible(?) forced emission (like in laser) could increase
somewhere in gas clouds in space intensity of spectral line.

greetings,
Janusz

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comets, what area where you looking at and time ?
Radio Rich