Correlated gravitational wave and microlensing signals of macroscopic dark matter

Abstract

Fermion dark matter particles can aggregate to form extended dark matter structures via a first-order phase transition in which the particles get trapped in the false vacuum. We study Fermi balls created in a phase transition induced by a generic quartic thermal effective potential. We show that for Fermi balls of mass, $3\times 10^{-12}{M}_{\odot }\lesssim M_{\mathrm{FB}}\lesssim 10^{-5}{M}_{\odot }$, correlated observations of gravitational waves produced during the phase transition (at SKA/THEIA/$\mu$Ares), and gravitational microlensing caused by Fermi balls (at Subaru-HSC), can be made.

arXiv comment16 pages, 7 figures, 1 table. Version to appear in JHEP

References in corpus (21)

• A 2.4% Determination of the Local Value of the Hubble Constant
• A unified equation of state of dense matter and neutron star structure
• Science with the space-based interferometer eLISA. II: Gravitational waves from cosmological phase transitions
• LCDM-based models for the Milky Way and M31 I: Dynamical Models
• Energy Budget of Cosmological First-order Phase Transitions
• Gravitational Wave Production by Collisions: More Bubbles
• Microlensing constraints on primordial black holes with the Subaru/HSC Andromeda observation
• Towards the Theory of Cosmological Phase Transitions
• Constraints on Earth-mass primordial black holes from OGLE 5-year microlensing events
• A new determination of the primordial He abundance using the HeI 10830A emission line: cosmological implications
• Revisiting constraints on asteroid-mass primordial black holes as dark matter candidates
• A robust upper limit on N_eff from BBN, circa 2011
• Updated Constraints on Asteroid-Mass Primordial Black Holes as Dark Matter
• Dark Quark Nuggets
• Gravitational Waves and Dark Radiation from Dark Phase Transition: Connecting NANOGrav Pulsar Timing Data and Hubble Tension
• Subaru through a different lens: microlensing by extended dark matter structures
• Fermi-ball dark matter from a first-order phase transition
• General Solutions for Tunneling of Scalar Fields with Quartic Potentials
• Gravitational microlensing by dark matter in extended structures
• Semi-Analytic Calculation of the Gravitational Wave Signal From the Electroweak Phase Transition for General Quartic Scalar Effective Potentials
• Gravitational wave signals of dark matter freeze-out

Cited by in corpus (1)

• Microlensing constraints on axion stars including finite lens and source size effects