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@ARTICLE{Kummer:419492,
      author       = {Kummer, Janis and Brüggen, Marcus and Dolag, Klaus and
                      Kahlhoefer, Felix and Schmidt-Hoberg, Kai},
      title        = {{S}imulations of core formation for frequent dark matter
                      self-interactions},
      reportid     = {PUBDB-2019-01142, arXiv:1902.02330. DESY-19-020. TTK-19-06},
      year         = {2019},
      abstract     = {We present the first $N$-body simulations that use smoothed
                      particle hydrodynamics to capture the effect of dark matter
                      self-interactions which are too frequent to be resolved
                      explicitly. The relevant energy transfer equations are
                      derived, the appropriate thermal conductivity is determined
                      and the effects of different smoothing kernels are studied.
                      We apply our framework to simulate the formation of
                      isothermal cores in isolated dark matter haloes and
                      determine the core growth rate as a function of the
                      self-scattering cross section. Our approach may be combined
                      with explicit simulations of rare scatterings in order to
                      simulate accurately the effects of arbitrary dark matter
                      self-interactions in future cosmological simulations.},
      keywords     = {dark matter: halo (autogen) / conductivity: thermal
                      (autogen) / formation (autogen) / hydrodynamics (autogen) /
                      scattering (autogen) / capture (autogen)},
      cin          = {T},
      cid          = {I:(DE-H253)T-20120731},
      pnm          = {611 - Fundamental Particles and Forces (POF3-611) / NewAve
                      - New avenues towards solving the dark matter puzzle
                      (638528) / DFG project 13245592 - SFB 676: Teilchen, Strings
                      und frühes Universum: Struktur von Materie und Raum-Zeit
                      (13245592) / EXC 2121 - Das Quantisierte Universum
                      (390833306)},
      pid          = {G:(DE-HGF)POF3-611 / G:(EU-Grant)638528 /
                      G:(GEPRIS)13245592 / G:(GEPRIS)390833306},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)25 / PUB:(DE-HGF)29},
      eprint       = {1902.02330},
      howpublished = {arXiv:1902.02330},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1902.02330;\%\%$},
      doi          = {10.3204/PUBDB-2019-01142},
      url          = {https://bib-pubdb1.desy.de/record/419492},
}