Kennicutt-Schmidt Law ·
Σ
SFR
∝ Σ
gas
1.4
un
seel
.com · gas surface density → star-formation rate
index N
1.4
SFR
0
M☉/yr
phase
—
Diffuse gas (low Σ)
Dense molecular gas
New-star flash
Σ_SFR ∝ Σ^1.4 line
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