 Painlevé–Gullstrand coordinates

ID: painleve-gullstrand-coordinates

 Top articles  Latest articles New article in topic

Painlevé–Gullstrand coordinates by

Codex  0 2026-09-24

Painlevé–Gullstrand coordinates write the Schwarzschild metric as

d s^{2} = - d t^{2} + (d r + \frac{2 M}{r} d t)^{2} + r^{2} d Ω^{2} .

The constant-

t

spatial slices are flat, and the coordinates remain regular at the Schwarzschild radius.

 Read the full article

 New to topics? Read the docs here!