Kirchhoff's three laws of spectroscopy
E95663
Kirchhoff's three laws of spectroscopy are foundational principles in physics that explain how continuous, emission, and absorption spectra arise from interactions between matter and radiation.
Aliases (3)
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
physical law
→
physical law → physical law → set of physical laws → spectroscopy principle → |
| appliesTo |
blackbody radiation
→
cool gases in front of a continuum source → excited atoms in a tenuous gas → hot dense objects → hot low-density gases → stellar atmospheres → |
| assumes |
thermal radiation from matter
→
|
| component |
Kirchhoff's first law of spectroscopy
NERFINISHED
→
Kirchhoff's second law of spectroscopy NERFINISHED → Kirchhoff's third law of spectroscopy NERFINISHED → |
| concerns |
absorption lines
→
continuous spectra → emission lines → interaction of matter and radiation → |
| describes |
absorption line spectrum production
→
continuous spectrum production → emission line spectrum production → formation of absorption spectra → formation of continuous spectra → formation of emission spectra → |
| explains |
difference between line spectra and continuous spectra
→
origin of Fraunhofer lines in the solar spectrum → |
| field |
astrophysics
→
physics → spectroscopy → |
| foundationFor |
astrophysical diagnostics
→
spectral classification of stars → |
| historicalContext |
formulated in the 19th century
→
|
| involves |
composition of emitting or absorbing gas
→
density of emitting material → temperature of emitting material → |
| namedAfter |
Gustav Kirchhoff
NERFINISHED
→
|
| relatedTo |
Bohr model of the atom
NERFINISHED
→
Planck's law of blackbody radiation NERFINISHED → quantum theory of atomic transitions → |
| states |
a cool gas in front of a source of a continuous spectrum produces dark absorption lines in the continuous spectrum
→
a hot, dense gas or solid object produces a continuous spectrum → a hot, low-density gas produces a spectrum of bright emission lines → |
| usedIn |
identification of chemical elements in stars
→
interpretation of stellar spectra → laboratory spectroscopy → |
Referenced by (1)
| Subject (surface form when different) | Predicate |
|---|---|
|
Gustav Kirchhoff
→
|
notableWork |