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Correcting for Evidence Uncertainty in the Templated Background Search for the Stochastic Gravitational-Wave Background
Xiao-Xiao Kou, Argyro Sasli, Muhammed Saleem +1
We report a new source of systematic bias in the Bayesian Templated Background Search (TBS) for the astrophysical stochastic gravitational-wave background. This bias arises from th…
Ultralight Bosons Explain the Mass-Spin Correlations in the Merging Binary Black Hole Population
Xiao-Xiao Kou, Vuk Mandic, Ran Ding +1
Ultralight bosons could trigger superradiant instabilities in rapidly spinning black holes, forming oscillating clouds while extracting rotational energy. We consider an extended,…
All You Need is not : Beyond the Mean of the Cross-Correlation Estimator when Searching for an Astrophysical Gravitational-Wave Background
Haowen Zhong, Francesco Iacovelli, Vuk Mandic +1
Searches for the stochastic gravitational-wave background (SGWB) using ground-based detectors rely heavily on the cross-correlation estimator , whose statistical properti…
A thorough investigation of cross-correlation estimators for stochastic gravitational-wave background searches in ground-based detector data
Haowen Zhong, Joseph D. Romano, Vuk Mandic +2
Detecting a stochastic gravitational-wave background represents a crucial yet challenging objective within the field of gravitational-wave astronomy. Ground-based detectors current…
Polarized Anisotropic Stochastic Gravitational Wave Background Search with Ground-Based Detector Networks
Töre Boybeyi, Vuk Mandic
Gravitational waves admit a Stokes decomposition into intensity (), circular polarization (), and linear polarization (, ), analogous to Cosmic Microwave Background (CM…
Parameter Estimation of the Gravitational-Wave Angular Power Spectrum in the Dirty-Map Space
Erik Floden, Alex Granados, Vuk Mandic
We consider a search for the anisotropic stochastic gravitational-wave background (SGWB) that decomposes the sky map into its spherical harmonics components in order to obtain esti…
Beyond Gaussian Assumptions: A new robust statistical framework for gravitational-wave data analysis
Argyro Sasli, Minas Karamanis, Nikolaos Karnesis +4
Many traditional algorithms applied in gravitational-wave astronomy rely on the assumption of Gaussian noise, a condition not always met. To meet this need, this study extends a ro…
Searching Stochastic Gravitational Wave Background Landscape Across Frequency Bands
Yunjia Bao, Tore Boybeyi, Vuk Mandic +1
Gravitational wave (GW) astrophysics is entering a multi-band era with upcoming GW detectors, enabling detailed mapping of the stochastic GW background across vast frequencies. We…
Importance of Shot Noise in the Search for an Isotropic Stochastic Gravitational-Wave Background with Next Generation Detectors
Haowen Zhong, Vuk Mandic
We investigate the impact of shot noise on the stochastic gravitational wave background generated by binary neutron star mergers, and confirm that the overall background can be sig…
Progress toward the detection of the gravitational-wave background from stellar-mass binary black holes: a mock data challenge
Xiao-Xiao Kou, Muhammed Saleem, Vuk Mandic +2
While the third LIGO--Virgo gravitational-wave transient catalog includes 90 signals, it is believed that binary black holes merge somewhere in the Universe every…
Two-Step Procedure to Detect Cosmological Gravitational Wave Backgrounds with Next-Generation Terrestrial Gravitational-Wave Detectors
Haowen Zhong, Luca Reali, Bei Zhou +2
Cosmological gravitational-wave backgrounds are an exciting science target for next-generation ground-based detectors, as they encode invaluable information about the primordial Un…
Angular Resolution of a Bayesian Search for Anisotropic Stochastic Gravitational Wave Backgrounds with LISA
Malachy Bloom, Alexander Criswell, Vuk Mandic
The Laser Interferometer Space Antenna (LISA), a spaceborne gravitational wave (GW) detector set to launch in 2035, will observe several stochastic GW backgrounds in the mHz freque…
Searching for cosmological stochastic backgrounds by notching out resolvable compact binary foregrounds with next-generation gravitational-wave detectors
Haowen Zhong, Bei Zhou, Luca Reali +2
Stochastic gravitational-wave backgrounds can be of either cosmological or astrophysical origin. The detection of an astrophysical stochastic gravitational-wave background with gro…
On the Stochastic Gravitational Wave Background from Binary Black Hole Mergers Dynamically Assembled in Dense Star Clusters
Xiao-Xiao Kou, Giacomo Fragione, Vuk Mandic
With about a hundred binary black hole (BBH) mergers detected by LIGO-Virgo-KAGRA, and with several hundreds expected in the current O4 run, GWs are revolutionizing our understandi…
Stochastic Gravitational-Wave Background from Stellar Core-Collapse Events
Bella Finkel, Haakon Andresen, Vuk Mandic
We estimate the stochastic gravitational-wave background arising from all stellar core-collapse events in the universe based on the gravitational-wave signal predictions of recent…
Parameter estimation for compact binary coalescence signals with the first generation gravitational-wave detector network
the LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +801
Compact binary systems with neutron stars or black holes are one of the most promising sources for ground-based gravitational wave detectors. Gravitational radiation encodes rich i…
Sensitivity Studies for Third-Generation Gravitational Wave Observatories
S. Hild, M. Abernathy, F. Acernese +136
Advanced gravitational wave detectors, currently under construction, are expected to directly observe gravitational wave signals of astrophysical origin. The Einstein Telescope, a…