Evershed effect in sunspots
Efecto Evershed en las manchas solares
- Date
- 1909 · confidence high
- Place
- Kodaikanal Solar Observatory, Tamil Nadu, India
- Credited to
- John Evershed
- People
- 👤 John Evershed1864–1956
- Field
- Cosmos & Earth
What was discovered
Discovery of a radial outward gas flow in the penumbra of sunspots, measured by the Doppler shift of spectral lines. It was one of the first pieces of evidence for plasma motions organised by the Sun's magnetic field.
What it led to
- physics of sunspots
- tradition of solar physics at Kodaikanal