Kirchhoff's laws
(Kirchhoff's three laws of spectroscopy)
(laws regarding the source of spectral lines)
Kirchhoff's laws (Kirchhoff's three laws of spectroscopy)
indicate the source of spectral lines.
- A hot solid, liquid, or dense gas produces a continuous spectrum.
- A hot thin (i.e., low density) gas produces emission lines.
- A continuous spectrum passing through a cold thin gas produces absorption lines.
Note that other widely-used physical laws are attributed to physicist
Gustav Kirchhoff (such as Kirchhoff's law of thermal radiation) and another grouping
is known as Kirchhoff's laws of circuits.
(physics,EMR)
Further reading:
https://en.wikipedia.org/wiki/Gustav_Kirchhoff#Kirchhoff.27s_three_laws_of_spectroscopy
http://hosting.astro.cornell.edu/academics/courses/astro201/kirchhoff.htm
https://www.e-education.psu.edu/astro801/content/l3_p6.html
Referenced by pages:
absorption line
emission line
emission-line star
Schuster-Schwarzschild model
thermal emission
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