Black holes in ultralight dark matter solitons undergo quasi-periodic stone-skipping orbits driven by soliton dipole excitations, modifying inspiral dynamics when the black hole is much lighter than the soliton.
Dynamical Friction in a Fuzzy Dark Matter Universe
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Using Jeans analysis of Leo II stellar kinematics, the paper constrains the fuzzy dark matter mass m_a and self-interaction parameter f_a, finding 95% CL lower limits on m_a in the (1-10)×10^{-22} eV range for |f_a^{-1}| ≲ 10^{-14} GeV^{-1}.
Numerical and analytic modeling of boson star-black hole systems in the nonrelativistic limit, with Fisher analysis indicating LISA sensitivity to ultralight dark matter mass and self-coupling via gravitational wave dephasing.
N-body and semianalytic simulations indicate that globular cluster distributions in UDG1 and Fornax require dark matter halos via dynamical friction, while DF44 yields no strong constraint.
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Stone Skipping Black Holes in Ultralight Dark Matter Solitons
Black holes in ultralight dark matter solitons undergo quasi-periodic stone-skipping orbits driven by soliton dipole excitations, modifying inspiral dynamics when the black hole is much lighter than the soliton.
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Constraints on Self-Interacting Fuzzy Dark Matter from the Stellar Kinematics of the Dwarf Galaxy Leo II
Using Jeans analysis of Leo II stellar kinematics, the paper constrains the fuzzy dark matter mass m_a and self-interaction parameter f_a, finding 95% CL lower limits on m_a in the (1-10)×10^{-22} eV range for |f_a^{-1}| ≲ 10^{-14} GeV^{-1}.