Parameter estimation for the GWTC-4.0 catalog with phenomenological waveform models that include orbital eccentricity and an updated description of spin precession
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arXiv
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| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914214549913600 |
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| author | Xu, Yumeng Valencia, Jorge Estrella, Héctor Estellés Buades, Antoni Ramos Husa, Sascha Rosselló-Sastre, Maria Querol, Joan Llobera Vidal, Felip Ramis Llompart, Maria de Lluc Planas Colleoni, Marta Hamilton, Eleanor Agudo, Arnau Montava Carrilero, Jesús Yébana Heffernan, Anna |
| author_facet | Xu, Yumeng Valencia, Jorge Estrella, Héctor Estellés Buades, Antoni Ramos Husa, Sascha Rosselló-Sastre, Maria Querol, Joan Llobera Vidal, Felip Ramis Llompart, Maria de Lluc Planas Colleoni, Marta Hamilton, Eleanor Agudo, Arnau Montava Carrilero, Jesús Yébana Heffernan, Anna |
| contents | The GWTC-4.0 catalog of transient gravitational wave signals describes observations made in the first part of the fourth observing run of the LIGO-Virgo-KAGRA (LVK) gravitational wave detector network. Here we extend the LVK's GWTC-4.0 analysis to elliptic orbits, and an improved description of spin precession in the frequency domain. For this study we use state-of-the-art waveforms from the IMRPhenom family (specifically XPNR, TPHM, and TEHM), and we consider the 84 confidently detected events that are consistent with binary-black-hole mergers. We present an extended catalog of updated posterior samples, quantify how incorporation of these waveform effects alters inferred source properties relative to previous analyses, and discuss waveform systematics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_19513 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Parameter estimation for the GWTC-4.0 catalog with phenomenological waveform models that include orbital eccentricity and an updated description of spin precession Xu, Yumeng Valencia, Jorge Estrella, Héctor Estellés Buades, Antoni Ramos Husa, Sascha Rosselló-Sastre, Maria Querol, Joan Llobera Vidal, Felip Ramis Llompart, Maria de Lluc Planas Colleoni, Marta Hamilton, Eleanor Agudo, Arnau Montava Carrilero, Jesús Yébana Heffernan, Anna General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena The GWTC-4.0 catalog of transient gravitational wave signals describes observations made in the first part of the fourth observing run of the LIGO-Virgo-KAGRA (LVK) gravitational wave detector network. Here we extend the LVK's GWTC-4.0 analysis to elliptic orbits, and an improved description of spin precession in the frequency domain. For this study we use state-of-the-art waveforms from the IMRPhenom family (specifically XPNR, TPHM, and TEHM), and we consider the 84 confidently detected events that are consistent with binary-black-hole mergers. We present an extended catalog of updated posterior samples, quantify how incorporation of these waveform effects alters inferred source properties relative to previous analyses, and discuss waveform systematics. |
| title | Parameter estimation for the GWTC-4.0 catalog with phenomenological waveform models that include orbital eccentricity and an updated description of spin precession |
| topic | General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2512.19513 |