Core Formation in High-z Massive Haloes: Heating by Post Compaction Satellites and Response to AGN Outflows

@article{Dekel2021CoreFI,
  title={Core Formation in High-z Massive Haloes: Heating by Post Compaction Satellites and Response to AGN Outflows},
  author={Avishai Dekel and Jonathan Freundlich and Fangzhou Jiang and Sharon Lapiner and Andreas Burkert and Daniel Ceverino and Xiaolong Du and Reinhard Genzel and Joel R. Primack},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2021}
}
Observed rotation curves in star-forming galaxies indicate a puzzling dearth of dark matter in extended flat cores within haloes of mass ≥1012M⊙ at z ∼ 2. This is not reproduced by current cosmological simulations, and supernova-driven outflows are not effective in such massive haloes. We address a hybrid scenario where post-compaction merging satellites heat up the dark-matter cusps by dynamical friction, allowing AGN-driven outflows to generate cores. Using analytic and semi-analytic models… 

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