Quenching Galaxies ·
Blue Cloud → Green Valley → Red Sequence
un
seel
.com · star formation shutdown · AGN · stripping · mergers
sSFR
10⁻⁹·⁵ /yr
State
Star-forming
Phase
—
Blue cloud (forming)
Green valley (transit)
Red sequence (dead)
Cold gas / outflow
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.com · Quenching Galaxies