From Capture to Collapse: Revisiting Black Hole formation by Fermionic Asymmetric Dark Matter in Neutron Stars
arXiv:2507.22881 · doi:10.1103/d19k-zfjf
Abstract
Fermionic asymmetric dark matter (ADM) can be captured in neutron stars (NSs) via scatterings with the star constituents. The absence of dark matter annihilation due to its asymmetric nature leads to ADM accumulation in the NS core, potentially reaching densities sufficient to exceed the Chandrasekhar limit and trigger its gravitational collapse into a black hole (BH), eventually consuming the NS from within. Therefore, the existence and observation of old neutron stars provide a means to constrain the properties of ADM. We revisit previous constraints on the mass and scattering cross section off neutrons of fermionic ADM across a class of models. We critically examine common simplifying approximations used in the literature to derive these limits. Our analysis includes improved treatments of dark matter capture, thermalization, BH formation, accretion, and evaporation. We find that previous results can be relaxed by a few orders of magnitude once these effects are properly accounted for.
17 pages, 8 figures, 3 tables. Discussion extended, matches published version
References in corpus (54)
- Asymmetric Dark Matter
- Asymmetric Dark Matter: Theories, Signatures, and Constraints
- Review of asymmetric dark matter
- A Review of Bondi--Hoyle--Lyttleton Accretion
- WIMP Annihilation and Cooling of Neutron Stars
- Compact Stars as Dark Matter Probes
- Can Neutron stars constrain Dark Matter?
- A NICER View of the Nearest and Brightest Millisecond Pulsar: PSR J0437$\unicode{x2013}$4715
- Magneto--thermal evolution of neutron stars
- Constraining Asymmetric Dark Matter through observations of compact stars
- Constraints on Scalar Asymmetric Dark Matter from Black Hole Formation in Neutron Stars
- Dark Kinetic Heating of Neutron Stars and An Infrared Window On WIMPs, SIMPs, and Pure Higgsinos
- BlackHawk v2.0: A public code for calculating the Hawking evaporation spectra of any black hole distribution
- Excluding Light Asymmetric Bosonic Dark Matter
- Realistic neutron star constraints on bosonic asymmetric dark matter
- Dark Matter Thermalization in Neutron Stars
- Multiscatter stellar capture of dark matter
- Detecting Dark Matter with Imploding Pulsars in the Galactic Center
- On the capture of dark matter by neutron stars
- Black Hole Metamorphosis and Stabilization by Memory Burden
- Heating up Neutron Stars with Inelastic Dark Matter
- Improved Treatment of Dark Matter Capture in Neutron Stars
- New Analysis of Neutron Star Constraints on Asymmetric Dark Matter
- Bounds on self-interacting fermion dark matter from observations of old neutron stars
- Internal Heating of Old Neutron Stars: Contrasting Different Mechanisms
- Dark matter capture in celestial objects: light mediators, self-interactions, and complementarity with direct detection
- Dark Kinetic Heating of Neutron Stars from Contact Interactions with Relativistic Targets
- Quark-Meson-Coupling (QMC) model for finite nuclei, nuclear matter and beyond
- The spectrum of the recycled PSR J0437-4715 and its white dwarf companion
- Nucleon Structure and Strong Interactions in Dark Matter Capture in Neutron Stars
- Rotochemical Heating in Millisecond Pulsars. Formalism and Non-superfluid case
- Improved Treatment of Dark Matter Capture in Neutron Stars II: Leptonic Targets
- Growth of Black Holes in the interior of Rotating Neutron Stars
- Neutron star radius measurement from the ultraviolet and soft X-ray thermal emission of PSR J0437-4715
- Superfluid Friction and Late-time Thermal Evolution of Neutron Stars
- Hubble Space Telescope non-detection of PSR J2144-3933: the coldest known neutron star
- Fate of a neutron star with an endoparasitic black hole and implications for dark matter
- Neutron star crust cooling in KS 1731-260: the influence of accretion outburst variability on the crustal temperature evolution
- Accretion onto a small black hole at the center of a neutron star
- Joule heating and the thermal evolution of old neutron stars
- Higgs portals to pulsar collapse
- Constraining dense-matter superfluidity through thermal emission from millisecond pulsars
- Isovector Effects in Neutron Stars, Radii and the GW170817 Constraint
- On (Not)-Constraining Heavy Asymmetric Bosonic Dark Matter
- Celestial Objects as Strongly-Interacting Non-Annihilating Dark Matter Detectors
- Thermalization and Annihilation of Dark Matter in Neutron Stars
- Rotation-induced deep crustal heating of millisecond pulsars
- New constraints on ultraheavy dark matter from the LZ experiment
- Beyond Hawking evaporation of black holes formed by dark matter in compact stars
- Neutron Star Quantum Death by Small Black Holes
- Long-lasting accretion-powered chemical heating of millisecond pulsars
- Heavy Dark Matter in White Dwarfs: Multiple-Scattering Capture and Thermalization
- Blocking the Hawking Radiation
- Improved Treatment of Bosonic Dark Matter Dynamics in Neutron Stars: Consequences and Constraints