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@ARTICLE{Persson:910500,
      author       = {Persson, Bo and Biele, J.},
      title        = {{O}n the {S}tability of {S}pinning {A}steroids},
      journal      = {Tribology letters},
      volume       = {70},
      number       = {2},
      issn         = {1023-8883},
      address      = {Dordrecht},
      publisher    = {Springer Science Business Media B.V.},
      reportid     = {FZJ-2022-03883},
      pages        = {34},
      year         = {2022},
      abstract     = {Most asteroids with a diameter larger than ∼300 m are
                      rubble piles, i.e., consisting of more than one solid
                      object. All asteroids are rotating but almost all asteroids
                      larger than ∼300 m rotate with a period longer than 2.3
                      hours, which is the critical period where the centrifugal
                      force equals the gravitational force. This indicates that
                      there are nearly no adhesive interaction forces between the
                      asteroid fragments. We show that this is due to the surface
                      roughness of the asteroid particles which reduces the van
                      der Waals interaction between the particles by a factor of
                      100 for micrometer sized particles and even more for larger
                      particles. We show that surface roughness results in an
                      interaction force which is independent of the size of the
                      particles, in contrast to the linear size dependency
                      expected for particles with smooth surfaces. Thus, two stone
                      fragments of size 100 nm attract each other with the same
                      non-gravitational force as two fragments of size 10 m.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC},
      ddc          = {670},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
                      $I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
      pnm          = {5211 - Topological Matter (POF4-521)},
      pid          = {G:(DE-HGF)POF4-5211},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000760271100002},
      doi          = {10.1007/s11249-022-01570-x},
      url          = {https://juser.fz-juelich.de/record/910500},
}