Binary Collisions of Dark Matter Blobs

Abstract

We describe the model-independent mechanism by which dark matter and dark matter structures heavier than $\sim 8\times 10^{11}$ GeV form binary pairs in the early Universe that spin down and merge both in the present and throughout the Universe's history, producing potentially observable signals. Sufficiently dense dark objects will dominantly collide through binary mergers instead of random collisions. We detail how one would estimate the merger rate accounting for finite size effects, multibody interactions, and friction with the thermal bath. We predict how mergers of dark dense objects could be detected through gravitational and electromagnetic signals, noting that such mergers could be a unique source of high frequency gravitational waves. We rule out objects whose presence would contradict observations of the CMB and diffuse gamma-rays.

arXiv comment16 pages, 3 figures Comments added on properties needed for blobs to merge as predicted

References in corpus (48)

• Constraints on Primordial Black Holes
• New CAST Limit on the Axion-Photon Interaction
• Limits on the Macho Content of the Galactic Halo from the EROS-2 Survey of the Magellanic Clouds
• Primordial Black Hole Scenario for the Gravitational-Wave Event GW150914
• Primordial Black Holes - Perspectives in Gravitational Wave Astronomy -
• Microlensing constraints on primordial black holes with the Subaru/HSC Andromeda observation
• The stochastic gravitational-wave background from massive black hole binary systems: implications for observations with Pulsar Timing Arrays
• The Sensitivity of the Advanced LIGO Detectors at the Beginning of Gravitational Wave Astronomy
• The merger rate of primordial-black-hole binaries
• The Tevatron at the Frontier of Dark Matter Direct Detection
• SENSEI: Direct-Detection Results on sub-GeV Dark Matter from a New Skipper-CCD
• New ALPS Results on Hidden-Sector Lightweights
• Constraints on Earth-mass primordial black holes from OGLE 5-year microlensing events
• Gravitational Waves from Coalescing Black Hole MACHO Binaries
• Challenges and Opportunities of Gravitational Wave Searches at MHz to GHz Frequencies
• A Geometric Determination of the Distance to the Galactic Center
• Constraints on MACHO Dark Matter from Compact Stellar Systems in Ultra-Faint Dwarf Galaxies
• Formation and Evolution of Primordial Black Hole Binaries in the Early Universe
• Results from phase 1 of the HAYSTAC microwave cavity axion experiment
• The ORGAN Experiment: An axion haloscope above 15 GHz
• Stochastic Gravitational Wave Backgrounds
• Primordial Black Holes as Generators of Cosmic Structures
• Understanding caustic crossings in giant arcs: characteristic scales, event rates, and constraints on compact dark matter
• Cosmological constraints on exotic injection of electromagnetic energy
• New constraints on primordial black holes abundance from femtolensing of gamma-ray bursts
• Early Structure Formation in $\Lambda$PBH Cosmologies
• Axion Dark Matter Detection with CMB Polarization
• Dark Quark Nuggets
• Black Hole Genesis of Dark Matter
• A Grand Rotation Curve and Dark Matter Halo in the Milky Way Galaxy
• Stable Bound States of Asymmetric Dark Matter
• Final Results of the PICASSO Dark Matter Search Experiment
• An experiment to search for dark matter interactions using sodium iodide detectors
• Primordial Black Hole Dark Matter and the LIGO/Virgo observations
• Accessibility of the Gravitational-Wave Background due to Binary Coalescences to Second and Third Generation Gravitational-Wave Detectors
• Green Bank and Effelsberg Radio Telescope Searches for Axion Dark Matter Conversion in Neutron Star Magnetospheres
• Search for dark matter at colliders
• Nuclear Structure of Bound States of Asymmetric Dark Matter
• Gravitational waves from primordial black holes collisions in binary systems
• Formation and internal structure of superdense dark matter clumps and ultracompact minihaloes
• Direct detection of primordial black hole relics as dark matter
• Signatures of Large Composite Dark Matter States
• The Edge of the Galaxy
• WIMP searches with gamma rays in the Fermi era: challenges, methods and results
• New Limits on Charged Dark Matter from Large-Scale Coherent Magnetic Fields
• Constraints on Relic Magnetic Black Holes
• Mergers of Maximally Charged Primordial Black Holes
• Decays of Long-Lived Relics and Their Signatures at IceCube

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