Prospects for detecting gravitational waves from eccentric subsolar mass compact binaries

Abstract

Due to their small mass, subsolar mass black hole binaries would have to be primordial in origin instead of the result of stellar evolution. Soon after formation in the early universe, primordial black holes can form binaries after decoupling from the cosmic expansion. Alternatively, primordial black holes as dark matter could also form binaries in the late universe due to dynamical encounters and gravitational-wave braking. A significant feature for this channel is the possibility that some sources retain nonzero eccentricity in the LIGO/Virgo band. Assuming all dark matter is primordial black holes with a delta function mass distribution, $1M_{\odot }-1M_{\odot }$ binaries formed in this late-universe channel can be detected by Advanced LIGO and Virgo with their design sensitivities at a rate of $\mathcal{O}(1)$/year, where $12\%(3\%)$ of events have eccentricity at a gravitational-wave frequency of 10 Hz, $e^{10Hz}\ge 0.01(0.1)$, and nondetection can constrain the binary formation rate within this model. Third generation detectors would be expected to detect subsolar mass eccentric binaries as light as $0.01M_{\odot }$ within this channel, if they accounted for the majority of the dark matter. Furthermore, we use simulated gravitational-wave data to study the ability to search for eccentric gravitational-wave signals using a quasi-circular waveform template bank with Advanced LIGO design sensitivity. For a match-filtering targeted search, assuming binaries with a delta function mass of $0.1(1)M_{\odot }$ and the eccentricity distribution derived from this late-universe formation channel, $41\%(6\%)$ of the signals would be missed compared to the ideal detection rate due to the mismatch in the gravitational-wave signal from eccentricity.

arXiv comment10 pages, 7 figures. Published version on the Astrophysical Journal. Code and data associated with this article at https://github.com/gwastro/prospects-subsolarmass-ecc

References in corpus (49)

• The Structure of Cold Dark Matter Halos
• Advanced Virgo: a 2nd generation interferometric gravitational wave detector
• GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run
• Toward a halo mass function for precision cosmology: the limits of universality
• Characterization of the LIGO detectors during their sixth science run
• Did LIGO detect dark matter?
• Cold dark matter haloes in the Planck era: evolution of structural parameters for Einasto and NFW profiles
• Primordial Black Hole Scenario for the Gravitational-Wave Event GW150914
• Primordial Black Holes as Dark Matter: Recent Developments
• Primordial Black Holes as a dark matter candidate
• The PyCBC search for gravitational waves from compact binary coalescence
• Comparison of post-Newtonian templates for compact binary inspiral signals in gravitational-wave detectors
• Halo concentrations in the standard LCDM cosmology
• Gravitational waves from scattering of stellar-mass black holes in galactic nuclei
• COLOSSUS: A python toolkit for cosmology, large-scale structure, and dark matter halos
• The merger rate of primordial-black-hole binaries
• Analysis Framework for the Prompt Discovery of Compact Binary Mergers in Gravitational-wave Data
• The Rate of Binary Black Hole Mergers Inferred from Advanced LIGO Observations Surrounding GW150914
• Gravitational Waves from Coalescing Black Hole MACHO Binaries
• The Neutron Star and Black Hole Initial Mass Function
• A chi-squared time-frequency discriminator for gravitational wave detection
• Formation and Evolution of Primordial Black Hole Binaries in the Early Universe
• Detecting gravitational waves from precessing binaries of spinning compact objects: Adiabatic limit
• 2-OGC: Open Gravitational-wave Catalog of binary mergers from analysis of public Advanced LIGO and Virgo data
• Cosmic Conundra Explained by Thermal History and Primordial Black Holes
• Primordial black holes with an accurate QCD equation of state
• Lower bound on the primordial black hole merger rate
• A faithful analytical effective one body waveform model for spin-aligned, moderately eccentric, coalescing black hole binaries
• Eccentric, nonspinning, inspiral, Gaussian-process merger approximant for the detection and characterization of eccentric binary black hole mergers
• Searching for Gravitational Waves from Compact Binaries with Precessing Spins
• On the minimum mass of neutron stars
• Detecting binary neutron star systems with spin in advanced gravitational-wave detectors
• Gravitational-wave phasing for low-eccentricity inspiralling compact binaries to 3PN order
• Search for Eccentric Binary Black Hole Mergers with Advanced LIGO and Advanced Virgo during their First and Second Observing Runs
• Orbital eccentricities in primordial black holes binaries
• Search for sub-solar mass ultracompact binaries in Advanced LIGO's first observing run
• Evidence for primordial black hole dark matter from LIGO/Virgo merger rates
• Gravitational waves from inspiralling compact binaries: hexagonal template placement and its efficiency in detecting physical signals
• All-sky search for short gravitational-wave bursts in the second Advanced LIGO and Advanced Virgo run
• Validating the Effective-One-Body Numerical-Relativity Waveform Models for Spin-aligned Binary Black Holes along Eccentric Orbits
• A 3PN Fourier Domain Waveform for Non-Spinning Binaries with Moderate Eccentricity
• Investigating the effect of precession on searches for neutron-star-black-hole binaries with Advanced LIGO
• A Fourier Domain Waveform for Non-Spinning Binaries with Arbitrary Eccentricity
• Supplement: The Rate of Binary Black Hole Mergers Inferred from Advanced LIGO Observations Surrounding GW150914
• Search for Eccentric Binary Neutron Star Mergers in the first and second observing runs of Advanced LIGO
• Eliminating the LIGO bounds on primordial black hole dark matter
• Search for gravitational waves from high-mass-ratio compact-binary mergers of stellar mass and sub-solar mass black holes
• Data Analysis Implications of Moderately Eccentric Gravitational Waves
• Microstates and near-horizon D-brane probes

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• 4-OGC: Catalog of gravitational waves from compact-binary mergers
• 3-OGC: Catalog of gravitational waves from compact-binary mergers
• The Minimum Testable Abundance of Primordial Black Holes at Future Gravitational-Wave Detectors
• Search for gravitational waves from the coalescence of sub-solar mass binaries in the first half of Advanced LIGO and Virgo's third observing run
• How to assess the primordial origin of single gravitational-wave events with mass, spin, eccentricity, and deformability measurements
• Accurate waveforms for eccentric, aligned-spin binary black holes: The multipolar effective-one-body model SEOBNRv5EHM
• Search for gravitational waves from the coalescence of sub-solar mass and eccentric compact binaries
• Evidence for eccentricity in the population of binary black holes observed by LIGO-Virgo-KAGRA
• Blind spots and biases: the dangers of ignoring eccentricity in gravitational-wave signals from binary black holes
• Searching for Primordial Black Holes with the Einstein Telescope: impact of design and systematics
• Correlations in gravitational-wave reconstructions from eccentric binaries: A case study with GW151226 and GW170608
• Detecting Subsolar-Mass Primordial Black Holes in Extreme Mass-Ratio Inspirals with LISA and Einstein Telescope
• Hierarchical approach to matched filtering using a reduced basis
• A geometric template bank for the detection of spinning low-mass compact binaries with moderate orbital eccentricity
• Search for gravitational waves from eccentric binary black holes with an effective-one-body template
• Search for sub-solar mass binaries with Einstein Telescope and Cosmic Explorer
• Gravitational Wave Emission from Close-in Strange Quark Planets Around Strange Stars with Magnetic Interactions
• Search for planetary-mass ultra-compact binaries using data from the first part of the LIGO--Virgo--KAGRA fourth observing run