The whole process will affect the dust size distribution in the surface material.
Smaller particles are more likely to reach escape velocity when ejected. Hence,
particles falling back will have a size distribution strongly skewed towards larger
particles thereby changing the size distribution in the smooth surfaces. It is important
Fig. 2.82 The same region on 67P viewed at three different epochs by Rosetta at roughly the same
scale. Left to right: September 2014, March 2015, June 2016. The arrows indicate observed changes
(Image
numbers:
N20140914T054255346ID30F22,
N20150328T052640179ID30F22,
N20160616T001920568ID30F22)
Fig. 2.81 Evidence of a curved jet structure seen on 31 May 2015 at 03:16:49 UT (Image number:
W20150531T031649472ID30F18)
148
2 The Nucleus
Smaller particles are more likely to reach escape velocity when ejected. Hence,
particles falling back will have a size distribution strongly skewed towards larger
particles thereby changing the size distribution in the smooth surfaces. It is important
Fig. 2.82 The same region on 67P viewed at three different epochs by Rosetta at roughly the same
scale. Left to right: September 2014, March 2015, June 2016. The arrows indicate observed changes
(Image
numbers:
N20140914T054255346ID30F22,
N20150328T052640179ID30F22,
N20160616T001920568ID30F22)
Fig. 2.81 Evidence of a curved jet structure seen on 31 May 2015 at 03:16:49 UT (Image number:
W20150531T031649472ID30F18)
148
2 The Nucleus