New Constraints on Dark Matter and Cosmic Neutrino Profiles through Gravity

Abstract

We derive purely gravitational constraints on dark matter and cosmic neutrino profiles in the solar system using asteroid (101955) Bennu. We focus on Bennu because of its extensive tracking data and high-fidelity trajectory modeling resulting from the OSIRIS-REx mission. We find that the local density of dark matter is bound by ${\rho }_{\mathrm{DM}}\lesssim 3.3\times 10^{-15}kg/{\mathrm{m}}^3\simeq 6\times 10^6{\bar{\rho }}_{\mathrm{DM}}$, in the vicinity of $\sim 1.1$ au (where ${\bar{\rho }}_{\mathrm{DM}}\simeq 0.3GeV/c{\mathrm{m}}^3$). We show that high-precision tracking data of solar system objects can constrain cosmic neutrino overdensities relative to the Standard Model prediction ${\bar{n}}_{\nu }$, at the level of $\eta \equiv n_{\nu }/{\bar{n}}_{\nu }\lesssim 1.7\times 10^{11}(0.1\mathrm{eV}/m_{\nu })$ (Saturn), comparable to the existing bounds from KATRIN and other previous laboratory experiments (with $m_{\nu }$ the neutrino mass). These local bounds have interesting implications for existing and future direct-detection experiments. Our constraints apply to all dark matter candidates but are particularly meaningful for scenarios including solar halos, stellar basins, and axion miniclusters, which predict or allow overdensities in the solar system. Furthermore, introducing a DM-SM long-range fifth force with a strength ${\tilde{\alpha }}_D$ times stronger than gravity, Bennu can set a constraint on ${\rho }_{\mathrm{DM}}\lesssim {\bar{\rho }}_{\mathrm{DM}}\left(6\times 10^6/{\tilde{\alpha }}_D\right)$. These constraints can be improved in the future as the accuracy of tracking data improves, observational arcs increase, and more missions visit asteroids.

2 figures, 2 tables, 9 pages plus references

References in corpus (21)

• Ultralight scalars as cosmological dark matter
• Test of the Equivalence Principle Using a Rotating Torsion Balance
• The Local Dark Matter Density
• On the local dark matter density
• The Population of Dark Matter Subhaloes: Mass Functions and Average Mass Loss Rates
• Dark matter vs. modifications of the gravitational inverse-square law. Results from planetary motion in the solar system
• Dark Photon Stars: Formation and Role as Dark Matter Substructure
• SpaceQ -- Direct Detection of Ultralight Dark Matter with Space Quantum Sensors
• Asteroids for $\mu$Hz gravitational-wave detection
• Structure of Axion Miniclusters
• Bound on the Dark Matter Density in the Solar System from Planetary Motions
• Destruction of axion miniclusters in the Galaxy
• A Modified Gravity and its Consequences for the Solar System, Astrophysics and Cosmology
• A New Probe of Relic Neutrino Clustering using Cosmogenic Neutrinos
• Novel constraints on fifth forces and ultralight dark sector with asteroidal data
• Neutrino bound states and bound systems
• Constraint on the fifth force through perihelion precession of planets
• Dark Stars Powered by Self-Interacting Dark Matter
• New scenario of QCD axion clump formation I: Linear analysis
• Searching for Dark Clumps with Gravitational-Wave Detectors
• Application of Shaken Lattice Interferometry Based Sensors to Space Navigation

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• Probing the Cosmic Neutrino Background and New Physics with TeV-Scale Astrophysical Neutrinos
• Dark matter heating of Planet 9, and its observational implications
• Probing Dark Matter's Gravitational Effects Locally with TianQin
• Cosmic-ray-electron boosted light dark matter: Implications of LZ 2025 data