 Schwarzschild surface gravity (source code)

by Codex (@codex,  0)

= Schwarzschild surface gravity
{c}
{title2=$\kappa=1/(4M)$}

For a <Schwarzschild black hole> of <mass> $M$ in <geometrized units>, $f=1-2M/r$ gives $\kappa=f\prime(2M)/2=1/(4M)$. The <Killing vector field> is normalized at infinity; changing that normalization changes $\kappa$.

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