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Finding cosmic anisotropy with networks of next-generation gravitational-wave detectors
Bryce Cousins, Arnab Dhani, Bangalore S. Sathyaprakash +1
The standard cosmological model involves the assumption of isotropy and homogeneity, a principle that is generally well-motivated but is now in conflict with various anisotropies f…
Reconstructing the Genealogy of LIGO-Virgo Black Holes
Parthapratim Mahapatra, Debatri Chattopadhyay, Anuradha Gupta +4
We propose a Bayesian inference framework to predict the merger history of LIGO-Virgo binary black holes (BHs), whose binary components may have undergone hierarchical mergers in t…
Constraining possible -ray burst emission from GW230529 using Swift-BAT and Fermi-GBM
Samuele Ronchini, Suman Bala, Joshua Wood +35
GW230529 is the first compact binary coalescence detected by the LIGO-Virgo-KAGRA collaboration with at least one component mass confidently in the lower mass-gap, corresponding to…
Everything everywhere all at once: A detailed study of GW230529
Koustav Chandra, Ish Gupta, Rossella Gamba +5
This study investigates the origins of GW230529, delving into its formation from massive stars within isolated binary systems. Utilizing population synthesis models, we present com…
Possible Causes of False General Relativity Violations in Gravitational Wave Observations
Anuradha Gupta, K. G. Arun, Enrico Barausse +40
General relativity (GR) has proven to be a highly successful theory of gravity since its inception. The theory has thrivingly passed numerous experimental tests, predominantly in w…
Multi-messenger Astrophysics of Black Holes and Neutron Stars as Probed by Ground-based Gravitational Wave Detectors: From Present to Future
Alessandra Corsi, Lisa Barsotti, Emanuele Berti +12
The ground-based gravitational wave (GW) detectors LIGO and Virgo have enabled the birth of multi-messenger GW astronomy via the detection of GWs from merging stellar-mass black ho…