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Table 2

Sensitivity limits in spectral type for the IRAC and MIPS1 samples for each association considered in this study.

Region IRAC sample MIPS1 sample

25 Orionis M5 (excluded) ...
Cha I M9 M6
ChaII M7* M5
CrA M8 M4*
λ Orionis M7* ...
Lupus M9 M9
NGC1333 M8 M5
σ Orionis M8 M0 (excluded)
Serpens M9 M8
Taurus M9 M6
Upper Sco M9 M5

Notes. Ellipses indicate that there are no objects in the sample with IRAC/MIPS1 above the corresponding sensitivity limit in that region. The adopted limiting spectral type for each case is marked with an asterisk. Regions not included in the corresponding sample are specified.

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