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Table 1

Summary of debris disk survey at 18 μm.

Spectral Input 18 μm-detected Excess Debris Apparent 18 μm sources Debris candidates Debris disk
type sources sources sources candidates frequency w/ detectable w/ detectable frequency
(%) photosphere photosphere (%)

A 18 232 196 21 11 5.6 ± 1.6 178 4 2.1 ± 1.1
F 29 766 324 12 10 3.1 ± 1.0 311 3 1.0 ± 0.6
G 14 013 173 3 2 1.2 ± 0.8 169 2 1.2 ± 0.8
K 2122 144 2 1 0.7 ± 0.7 144 0 0.0
M 76 19 4 0 0.0 19 0 0.0

Total 64 209 856 42 24 2.8 ± 0.6 830 9 1.1 ± 0.4

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