The M–σ Relation ·
Black Holes Know Their Galaxies
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.com · velocity dispersion · black-hole mass · co-evolution
Slope
M_BH ∝ σ⁴·⁴
Scatter
< 0.3 dex
State
—
Central black hole (M_BH)
Bulge stars (σ)
Best-fit M–σ line
Feedback outflow
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.com · The M–σ Relation