The absence of disks with masses in excess of 0.025 Msun in IC 348 is different at the about 3 sigma confidence level from Taurus, where about 14% of the stars in an optically selected sample have such disk masses.
This figure shows that none of the known IC 348 stars were detected in the lambda 3mm continuum at the 3sigma noise level or greater.
The mean flux observed toward the 95 IC 348 members is 0.22 ± 0.08 mJy, where the uncertainty is the standard deviation of the mean.
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