A new gravitational wave event reveals a binary black hole merger with total mass 190-265 solar masses, indicating black holes can form via gravitational-wave driven mergers beyond standard stellar channels.
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Advanced Virgo: a 2nd generation interferometric gravitational wave detector
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Advanced Virgo is the project to upgrade the Virgo interferometric detector of gravitational waves, with the aim of increasing the number of observable galaxies (and thus the detection rate) by three orders of magnitude. The project is now in an advanced construction phase and the assembly and integration will be completed by the end of 2015. Advanced Virgo will be part of a network with the two Advanced LIGO detectors in the US and GEO HF in Germany, with the goal of contributing to the early detections of gravitational waves and to opening a new observation window on the universe. In this paper we describe the main features of the Advanced Virgo detector and outline the status of the construction.
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- abstract Advanced Virgo is the project to upgrade the Virgo interferometric detector of gravitational waves, with the aim of increasing the number of observable galaxies (and thus the detection rate) by three orders of magnitude. The project is now in an advanced construction phase and the assembly and integration will be completed by the end of 2015. Advanced Virgo will be part of a network with the two Advanced LIGO detectors in the US and GEO HF in Germany, with the goal of contributing to the early detections of gravitational waves and to opening a new observation window on the universe. In this pa
- background LIGO Laboratory which is a major facility fully funded by the NSF. REFERENCES [1] B. P. Abbottet al.(LIGO Scientific, Virgo), "Observation of Gravitational Waves from a Binary Black Hole Merger," Phys. Rev. Lett.116, 061102 (2016), arXiv:1602.03837 [gr-qc]. [2] J. Aasiet al.(LIGO Scientific), "Advanced LIGO," Class. Quant. Grav.32, 074001 (2015), arXiv:1411.4547 [gr-qc]. [3] F. Acerneseet al.(Virgo), "Advanced Virgo: a second- generation interferometric gravitational wave detector," Class. Quant
- background These considerations should be useful to inform the development of the XG detector network. I. INTRODUCTION In the past decade, the observation of the gravitational- wave (GW) signal emitted by compact binary coalescences (CBCs) gave us a new tool to study the Universe. With more than 200 event candidates observed by the LIGO [1], Virgo [2], and KAGRA [3] (LVK) detectors, the GWs give us insight into the demography of masses, redshifts, and spins of compact object binaries [4, 5], the nature of
- background 18080 [gr-qc]. [2] A. G. Abacet al.(LIGO Scientific, VIRGO, KAGRA), GWTC-4.0: Updating the Gravitational-Wave Transient Catalog with Observations from the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run, (2025), arXiv:2508.18082 [gr-qc]. 6 [3] J. Aasiet al.(LIGO Scientific), Advanced LIGO, Class. Quant. Grav.32, 074001 (2015), arXiv:1411.4547 [gr-qc]. [4] F. Acerneseet al.(VIRGO), Advanced Virgo: a second- generation interferometric gravitational wave detector, Class. Quant. Grav.32, 024
- background source properties from there derived are naturally suited to astrophysical interpretation and catalog statistics, such as identification of exceptional events from previous and ongoing observing runs. Using the latest LIGO-Virgo-KAGRA data, we thus demonstrate that population inference is not optional to interpret gravitational-wave observations. Pitfalls of parameter estimation-Gravitational- wave (GW) signals observed by the LIGO [1], Virgo [2], and KAGRA [3] (LVK) interferometers are used to
- background 946, 59 (2023), arXiv:2112.06878 [astro-ph.HE]. [6] R. Abbottet al.(KAGRA, VIRGO, LIGO Scientific), Phys. Rev. X13, 041039 (2023), arXiv:2111.03606 [gr-qc]. [7] B. P. Abbottet al.(LIGO Scientific, Virgo), Phys. Rev. Lett.119, 161101 (2017), arXiv:1710.05832 [gr-qc]. [8] J. Aasiet al.(LIGO Scientific), Class. Quant. Grav.32, 074001 (2015), arXiv:1411.4547 [gr-qc]. [9] F. Acerneseet al.(VIRGO), Class. Quant. Grav.32, 024001 (2015), arXiv:1408.3978 [gr-qc]. [10] T. Akutsuet al.(KAGRA), PTEP2021, 05
- background reduces parameter degeneracies and accelerates compu- tations [76]. In this paper, we apply this approach to the event GW250114 082203, henceforth GW250114 [15]. This event was detected by the LIGO detectors [77] on January 14, 2025, and has the largest network signal-to- noise ratio (SNR) to date, with a value of approximately 80 [15, 16]. At the time of this event, the Virgo [78] and KAGRA [79] detectors were not in operation. Ref- erence [15] reports an inspiral-merger-ringdown (IMR) analysis
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citing papers explorer
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GW231123: a Binary Black Hole Merger with Total Mass 190-265 $M_{\odot}$
A new gravitational wave event reveals a binary black hole merger with total mass 190-265 solar masses, indicating black holes can form via gravitational-wave driven mergers beyond standard stellar channels.
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AI-enabled gravitational-waves searches for binary neutron stars at optimal sensitivity
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Population Properties of Binary Black Holes with Eccentricity
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Joint inference of line-of-sight acceleration and orbital eccentricity in neutron-star--black-hole binaries
All five NSBH events are consistent with zero line-of-sight acceleration; the joint posterior for GW200105_162426 disfavors both zero LOSA and zero eccentricity at 90% credibility.
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Constraints on Line-of-Sight Acceleration from O1-O4
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Out-of-Equilibrium Effects in Non-Radial Relativistic Stellar Perturbations: A Model-Agnostic Formulation and Mode Analysis
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Model-Independent Search Discards Faint Lensed-Pairs of Gravitational Wave Events in the Sub-Threshold Candidates of GWTC-4
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A universal framework to identify eccentric binary mergers: GW200105 case study
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End-to-End Population Inference from Gravitational-Wave Strain using Transformers
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How lonely are the Binary Compact Objects Detected by the LIGO-Virgo-KAGRA Collaboration?
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Quasinormal modes and tidal responses of black holes in generic anisotropic matter environments
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Method to get Better Sky Maps in a GstLAL Low-Latency Analysis
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Eccentric and unbound compact binaries in the LIGO-Virgo-KAGRA catalog: parameter estimation and waveform systematics with SEOBNRv6EHM
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Data-Driven Acceleration of Eccentricity Reduction for Binary Black Hole Simulations
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Parameter Estimation of the Gravitational-Wave Angular Power Spectrum in the Dirty-Map Space
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Gravitational-wave astronomy requires population-informed parameter estimation
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Plunge-Merger-Ringdown Tests of General Relativity with GW250114
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Signatures of a subpopulation of hierarchical mergers in the GWTC-4 gravitational-wave dataset
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Detection of GW200105 with a targeted eccentric search
Targeted eccentric search detects GW200105 with SNR 13.4 and FAR <1/1000 yr, consistent with dynamical formation of the NSBH binary.