Astronomy & Cosmology
Saha ionization equation
1920 CEMeghnad SahaSaha's papersPan-Indian / unspecified
1920
An equation relating ionisation of a gas to temperature and pressure, enabling interpretation of stellar spectra.
- Dated
- 1920
- As scholars put it
- 1920 CE
- Originator
- Meghnad Saha
- Source text
- Saha's papers
- Region
- Pan-Indian / unspecified
- Discipline
- Astronomy & Cosmology
- Evidence
- Documented
- Confidence
- High
- Verification
- Reference-cited
Meanwhile in the West
Became foundational in Western astrophysics.
Fair to say
Widely used and credited, though Saha was never awarded a Nobel.
Path to modern innovation
Still central to astrophysics and plasma physics.
1920Saha ionization equation
1930
1957Transmission
Adopted internationally as the basis of stellar spectral classification.
Primary sources
References
- 1M. Saha (1920)
- 2astrophysics texts
Further reading
Corrections and additional sources: edit IND-133 on GitHub.