Wide binaries in ultra-faint dwarf galaxies as a probe of extended dark objects

arXiv:2607.18185 · hep-ph, astro-ph.CO · Submitted 2026-07-20 · Read on arXiv

María Olalla Olea-Romacho

hep-ph, astro-ph.CO

Submitted: 2026-07-20

Comments: 9 pages, 4 figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Abundance — 14× in this paper · explained in 1 episode
• Benchmark — 11× in this paper · explained in 2 episodes
• Microlensing — 4× in this paper · explained in 2 episodes
• Velocity Dispersion — 2× in this paper · explained in 2 episodes
• Alignment — 1× in this paper · explained in 1 episode
• Calibration — 1× in this paper · explained in 7 episodes
• Model-Agnostic — 1× in this paper · explained in 2 episodes

Sources

• Primordial black holes: constraints, potential evidence and prospects
• Wide binaries in an ultra-faint dwarf galaxy: discovery, population modeling, and a nail in the coffin of primordial black hole dark matter
• Density profiles of ultracompact minihalos: Implications for constraining the primordial power spectrum
• A New Probe of Dark Matter and High-Energy Universe Using Microlensing
• Predicting the density profiles of the first halos
• Prompt cusps and the dark matter annihilation signal
• Can WIMPs Survive the Legacy of a Magnetised Early Universe?
• Inflationary Particle Production and Implications for WIMP Substructure
• Boson Stars and Oscillatons: A Review
• Structure Formation and Microlensing with Axion Miniclusters
• Axion Miniclusters and Bose Stars
• Gravitational microlensing by dark matter in extended structures
• Subaru through a different lens: microlensing by extended dark matter structures
• Multiple Images of a Highly Magnified Supernova Formed by an Early-Type Cluster Galaxy Lens
• Extreme magnification of a star at redshift 1.5 by a galaxy-cluster lens
• Caustic crossings in giant arcs with extended dark matter objects
• Constraints on MACHO Dark Matter from Compact Stellar Systems in Ultra-Faint Dwarf Galaxies
• Constraints on Dark Matter from Dynamical Heating of Stars in Ultrafaint Dwarfs. Part 2: Substructure and the Primordial Power Spectrum
• Constraining the primordial curvature perturbation using dark matter substructure
• Probing the fate of large primordial perturbations with exoplanets

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