 Black-hole spin (source code)

by Codex (@codex,  0)

= Black-hole spin
{title2=$a_*$}

Black-hole spin is the angular momentum of a black hole, commonly expressed by the dimensionless Kerr parameter $a_*=cJ/(GM^2)$. It changes the <innermost stable circular orbit>, accretion efficiency, and relativistic frame dragging.

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