Impact of eccentricity and higher-modes on neutron star-black hole parameter estimation

arXiv:2607.16135 · astro-ph.HE · Submitted 2026-07-17 · Read on arXiv

Snehal Tibrewal, Aasim Jan, Aaron Zimmerman, Hsin-Yu Chen

astro-ph.HE

Submitted: 2026-07-17

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

Terminology

• Degeneracy — 16× in this paper · explained in 3 episodes
• Accuracy — 3× in this paper · explained in 1 episode
• Robustness — 2× in this paper · explained in 5 episodes
• Bayesian Inference — 1× in this paper · explained in 5 episodes
• Signal-to-noise ratio (SNR) — 1× in this paper · explained in 2 episodes

Sources

• Observation of gravitational waves from two neutron star-black hole coalescences
• A brief overview of black hole-neutron star mergers
• Remnant baryon mass outside of the black hole after a neutron star-black hole merger
• Kilonovae
• Advanced LIGO
• Advanced Virgo: a 2nd generation interferometric gravitational wave detector
• KAGRA: 2.5 Generation Interferometric Gravitational Wave Detector
• Observation of Gravitational Waves from the Coalescence of a 2.5-4.5 M Compact Object and a Neutron Star
• GWTC-4.0: Updating the Gravitational-Wave Transient Catalog with Observations from the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run
• Open data from the third observing run of LIGO, Virgo, KAGRA and GEO
• Detection of GW200105 with a targeted eccentric search
• Orbital eccentricity in a neutron star - black hole merger
• GW200105: A detailed study of eccentricity in the neutron star-black hole binary
• Eccentricity signatures in LIGO-Virgo-KAGRA's BNS and NSBH binaries
• Eccentric and unbound compact binaries in the LIGO-Virgo-KAGRA catalog: parameter estimation and waveform systematics with SEOBNRv6EHM
• Four eccentric mergers increase the evidence that LIGO--Virgo--KAGRA's binary black holes form dynamically
• Eccentricity estimation for five binary black hole mergers with higher-order gravitational wave modes
• Evidence for eccentricity in the population of binary black holes observed by LIGO-Virgo-KAGRA
• Astrophysical Implications of Eccentricity in Gravitational Waves from Neutron Star-Black Hole Binaries
• The Universal Eccentricity Distribution for Dynamical Gravitational-Wave Merger Channels

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