Systematic Biases in Gravitational-Wave Parameter Estimation from Neglecting Orbital Eccentricity in Space-Based Detectors

arXiv:2601.07739 · gr-qc, astro-ph.CO, astro-ph.IM · Submitted 2026-01-12 · Read on arXiv

gr-qc, astro-ph.CO, astro-ph.IM

Submitted: 2026-01-12

Updated: 2026-09-10

Comments: 21 pages, 14 figures, updated to match published version

Journal ref: Phys. Rev. D 114, 064047 (2026)

DOI: 10.1103/mz81-kv2h

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

Terminology

• Alignment — 13× in this paper · explained in 1 episode
• Systematic Bias — 10× in this paper · explained in 3 episodes
• Bayesian Inference — 8× in this paper · explained in 5 episodes
• Accuracy — 4× in this paper · explained in 1 episode
• Consistency — 2× in this paper · explained in 3 episodes
• Fisher Information — 2× in this paper · explained in 3 episodes
• Signal-to-noise ratio (SNR) — 2× in this paper · explained in 2 episodes
• Aligned-Spin Model — 1× in this paper · explained in 1 episode
• Core — 1× in this paper · explained in 2 episodes
• Einstein Telescope — 1× in this paper
• Fidelity — 1× in this paper · explained in 2 episodes
• Physical Constraints — 1× in this paper · explained in 7 episodes

Sources

• Advanced LIGO
• Advanced Virgo: a 2nd generation interferometric gravitational wave detector
• Detector configuration of KAGRA - the Japanese cryogenic gravitational-wave detector
• GWTC-4.0: An Introduction to Version 4.0 of the Gravitational-Wave Transient Catalog
• GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs
• GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run
• GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run
• GWTC-2.1: Deep Extended Catalog of Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run
• The population of merging compact binaries inferred using gravitational waves through GWTC-3
• GWTC-4.0: Population Properties of Merging Compact Binaries
• Constraints on dark photon dark matter using data from LIGO's and Virgo's third observing run
• Constraints on the cosmic expansion history from GWTC-3
• GWTC-4.0: Constraints on the Cosmic Expansion Rate and Modified Gravitational-wave Propagation
• Tests of General Relativity with the Binary Black Hole Signals from the LIGO-Virgo Catalog GWTC-1
• Tests of General Relativity with GWTC-3
• FINDCHIRP: an algorithm for detection of gravitational waves from inspiraling compact binaries
• Parameter estimation with gravitational waves
• An introduction to Bayesian inference in gravitational-wave astronomy: parameter estimation, model selection, and hierarchical models
• Implications of Eccentric Observations on Binary Black Hole Formation Channels
• Hierarchical Triples vs. Globular Clusters: Binary black hole merger eccentricity distributions compete and evolve with redshift

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