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Table 1

Summary of the experimental parameters in the 19 drop-tower experiments.

Experiment Particle Radius range Air pressure Light intensity Particle
number material [μm] [mbar] [mW   cm-2] number

Drop08-01 SiO2black 1−20 1.17 950, 1090 66
Drop08-02 SiO2black 1−20 0.67 810, 540 46
Drop08-03 SiO2black 1−20 1.08 400, 540 57
Drop08-04 SiO2black 1−20 1.03 500, 300 111
Drop08-05 Olivine 1−20 1.00 950, 1000, 750 165
Drop08-10 SiO2black 1−20 0.75 300, 660, 150 6
Drop08-14 SiO2black 1−20 1.09 40, 500, 200 20

Drop09-02 SiO2black 25−200 1.03 1125 72
Drop09-04 SiO2black 25−200 0.2 1120 352
Drop09-05 SiO2black 25−200 0.2 1125 462
Drop09-06 Olivine 25−200 0.17 1125 52
Drop09-07 SiO2white 25−200 0.18 1125 180
Drop09-08 SiO2white 25−200 0.18 1475 482
Drop09-10 Olivine 25−200 0.17 1735 291
Drop09-13 SiO2black 25−200 1.0 630 198
Drop09-14 SiO2black 25−200 0.2 420 265
Drop09-15 Olivine 25−200 0.17 637 185

Notes. The last column shows the number of individual dust aggregates for which reliable photophoretic velocities could be measured (i.e. for which the goodness of the fit was better than χ2 ≤ 0.35; see Sect. 4).

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