56 citations · 131 across the 11 of their papers we have counts for
11 papers
Implications of GW241011 for rotating exotic compact objects
N. V. Krishnendu, Tamara Evstafyeva, Aditya Vijaykumar +17
A number of theoretical proposals have been made for horizonless compact objects with masses and spins similar to those of black holes. While gravitational wave signatures from the…
Confronting general relativity with principal component analysis: Simulations and results from GWTC-3 events
Parthapratim Mahapatra, Sayantani Datta, Ish Gupta +10
We present a comprehensive assessment of multiparameter tests of general relativity (GR) in the inspiral regime of compact binary coalescences using principal component analysis (P…
Black hole mimickers: from theory to observation
Cosimo Bambi, Ramy Brustein, Vitor Cardoso +16
The black hole paradigm, while remarkably successful, raises fundamental questions-both classical and quantum-about the nature of spacetime, horizons, and singularities. Black hole…
Possible binary neutron star merger history of the primary of GW230529
Parthapratim Mahapatra, Debatri Chattopadhyay, Anuradha Gupta +4
Black holes (BHs) with masses between , produced by a binary neutron star (BNS) merger, can further pair up with a neutron star or BH and merge again within a Hu…
Effect of Type II Strong Gravitational Lensing on Tests of General Relativity
Purnima Narayan, Nathan K. Johnson-McDaniel, Anuradha Gupta
Gravitational wave (GW) observations of binary black hole (BBH) coalescences provide a unique opportunity to test general relativity (GR) in the strong-field regime. To ensure the…
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…
A meta inspiral-merger-ringdown consistency test of general relativity with gravitational wave signals from compact binaries
Sakshi Satish Madekar, Nathan K Johnson-McDaniel, Anuradha Gupta +1
The observation of gravitational waves from compact binary coalescences is a promising tool to test the validity of general relativity (GR) in a highly dynamical strong-field regim…
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…
Multiparameter multipolar test of general relativity with gravitational waves
Parthapratim Mahapatra, Shilpa Kastha, Anuradha Gupta +2
Amplitude and phase of the gravitational waveform from compact binary systems can be decomposed in terms of their mass- and current-type multipole moments. In a modified theory of…
Inferring spin tilts of binary black holes at formation with plus-era gravitational wave detectors
Sumeet Kulkarni, Nathan K. Johnson-McDaniel, Khun Sang Phukon +2
The spin orientations of spinning binary black hole (BBH) mergers detected by ground-based gravitational wave detectors such as LIGO and Virgo can provide important clues about the…
Distinguishing binary black hole precessional morphologies with gravitational wave observations
Nathan K. Johnson-McDaniel, Khun Sang Phukon, N. V. Krishnendu +1
The precessional motion of binary black holes can be classified into one of three morphologies, based on the evolution of the angle between the components of the spins in the orbit…