Fundamental Plane ·
log R = a log σ + b log I + c
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.com · Djorgovski-Davis · Seven Samurai · 1987
slope a
—
slope b
—
scatter
—
beat
—
Elliptical galaxy
σ axis (velocity)
R_eff axis (size)
I_e axis (brightness)
Fitted plane
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.com · Fundamental Plane