Dynamical friction of black holes in ultralight dark matter
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DOI: 10.1103/physrevd.105.083008
Abstract: In this work we derive simple closed-form expressions for the dynamical friction acting on black holes moving through ultralight (scalar field) dark matter, covering both nonrelativistic and relativistic black hole speeds. Our derivation is based… read more here.
Keywords: black holes; dark matter; dynamical friction; ultralight dark ... See more keywords
Multifield ultralight dark matter
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review D"
DOI: 10.1103/physrevd.107.083014
Abstract: Ultralight dark matter (ULDM) is usually taken to be a single scalar field. Here we explore the possibility that ULDM consists of $N$ light scalar fields with only gravitational interactions. This configuration is more consistent… read more here.
Keywords: velocity dispersion; field; ultralight dark; dark matter ... See more keywords
Flavor of cosmic neutrinos preserved by ultralight dark matter
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.051702
Abstract: Within the standard propagation scenario, the flavor ratios of high-energy cosmic neutrinos at neutrino telescopes are expected to be around the democratic benchmark resulting from hadronic sources, $\left( 1 : 1 : 1 \right)_\oplus$. We… read more here.
Keywords: dark matter; ultralight dark; cosmic neutrinos; flavor ... See more keywords
Search for Ultralight Dark Matter from Long-Term Frequency Comparisons of Optical and Microwave Atomic Clocks.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.241301
Abstract: We search for ultralight scalar dark matter candidates that induce oscillations of the fine structure constant, the electron and quark masses, and the quantum chromodynamics energy scale with frequency comparison data between a ^{171}Yb optical… read more here.
Keywords: search ultralight; ultralight dark; dark matter; frequency ... See more keywords