Cosmological Redshift
z = (λ - lambda_0) / lambda_0
What it says
How far a spectral line has been stretched by the expansion of space.
Symbols
| Symbol | Quantity | Dimension |
|---|---|---|
z | Redshift (dimensionless) | 1 |
λ | Observed wavelength (m) | L |
lambda_0 | Rest wavelength (m) | L |
Work it out
Enter what you know. No account needed.
Fill in all but one: λ, lambda_0, z are all empty.
Filed under Astrophysics · derive through it in the explorer