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@ARTICLE{Pfalzner:1031512,
      author       = {Pfalzner, Susanne and Govind, Amith and Wagner, Frank},
      title        = {{I}rregular {M}oons {P}ossibly {I}njected from the {O}uter
                      {S}olar {S}ystem by a {S}tellar {F}lyby},
      journal      = {The astrophysical journal / Part 2},
      volume       = {972},
      number       = {2},
      issn         = {2041-8205},
      address      = {London},
      publisher    = {Institute of Physics Publ.},
      reportid     = {FZJ-2024-05713},
      pages        = {L21},
      year         = {2024},
      abstract     = {The irregular moons orbit the giant planets on distant,
                      inclined, and eccentric trajectories, in sharp contrast with
                      the coplanar and quasicircular orbits of the regular moons.
                      The origin of these irregular moons is still an open
                      question, but these moons have a lot in common with the
                      objects beyond Neptune (trans-Neptunian objects—TNOs),
                      suggestive of a common origin. Here, we show that the close
                      flyby of a star may be the connecting element. A stellar
                      flyby can simultaneously reproduce the complex TNO dynamics
                      quantitatively while explaining the origin of the irregular
                      moons and the color distributions of both populations. This
                      flyby would have catapulted $7.2\%$ of the original TNO
                      population into the region of the planets, many on
                      retrograde orbits. Most injected TNOs would have been
                      subsequently ejected from the solar system $(85\%).$
                      However, a considerable fraction would have had the
                      potential to be captured by the planets. The exclusively
                      distant origin of the injected TNOs may also explain the
                      lack of very red irregular moons.},
      cin          = {JSC},
      ddc          = {520},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {5121 - Supercomputing $\&$ Big Data Facilities (POF4-512)},
      pid          = {G:(DE-HGF)POF4-5121},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001304242800001},
      doi          = {10.3847/2041-8213/ad63a6},
      url          = {https://juser.fz-juelich.de/record/1031512},
}