159 citations · 459 across the 14 of their papers we have counts for
16 papers
Testing compact binary nature in eccentric orbits with third-generation detectors
Syed U. Naqvi, Kaushik Paul, Chandra Kant Mishra
The spin-induced quadrupole moment (SIQM) of a compact object provides a direct null test of the Kerr hypothesis. Most existing gravitational-wave tests of SIQM assume quasi-circul…
Large mass-ratio () inspiral-merger-ringdown model for eccentric binary black holes
Pratul Manna, Tamal RoyChowdhury, Chandra Kant Mishra
We present , a fully analytical entric-rid-nspiral-erger-ingdown model for the quadrupole ($\e…
Testing the Kerr hypothesis beyond the quadrupole with GW241011
Rimo Das, N. V. Krishnendu, M. Saleem +2
All multipole moments of a Kerr black hole are uniquely determined by its mass and spin. Gravitational wave observations can test this prediction by measuring spin-induced multipol…
Biased parameter inference of eccentric, spin-precessing binary black holes
Divyajyoti, Isobel M. Romero-Shaw, Vaishak Prasad +8
While the majority of gravitational wave (GW) events observed by the LIGO and Virgo detectors are consistent with mergers of binary black holes (BBHs) on quasi-circular orbits, som…
Chase Orbits, not Time: A Scalable Paradigm for Long-Duration Eccentric Gravitational-Wave Surrogates
Akash Maurya, Prayush Kumar, Scott E. Field +6
Orbital eccentricity is a key tracer of the astrophysical origins of compact binaries. Yet it remains absent from routine LIGO-Virgo-KAGRA analyses, in part because of the prohibit…
Spin-induced Quadrupole Moment (SIQM) Test for Eccentric Compact Binaries
Syed U. Naqvi, Chandra Kant Mishra
Spin-induced deformations of individual components of a binary can be quantified using the gravitational wave signal the binary emits. Such deformations are characterised by a para…
An Accurate Modeling of Nano-hertz Gravitational Wave Signal from Eccentric Supermassive Binary Black Holes: An Essential Step Toward a Robust Discovery
Mohit Raj Sah, Akash Maurya, Suvodip Mukherjee +7
The stochastic gravitational wave background (SGWB) in the nanohertz (nHz) regime, detectable by pulsar timing arrays (PTAs), provides a promising probe of the cosmic population of…
Inferring additional physics through unmodelled signal reconstructions
Rimo Das, V. Gayathri, Divyajyoti +4
Parameter estimation of gravitational wave data is often computationally expensive, requiring simplifying assumptions such as circularisation of binary orbits. Although, if include…
Spin effects in the phasing formula of eccentric compact binary inspirals up to the third post-Newtonian order
Omkar Sridhar, Soham Bhattacharyya, Kaushik Paul +1
Compact binary sources that emit gravitational waves (GW) are expected to be both spinning and on eccentric orbits. No closed-form expression for the phasing of GWs are available t…
ESIGMAHM: An Eccentric, Spinning inspiral-merger-ringdown waveform model with Higher Modes for the detection and characterization of binary black holes
Kaushik Paul, Akash Maurya, Quentin Henry +5
We present a time-domain inspiral-merger-ringdowm (IMR) waveform model ESIGMAHM constructed within a framework we named ESIGMA for coalescing binaries of spinning black holes on mo…
Improved inspiral-merger-ringdown model for BBHs on elliptical orbits
Pratul Manna, Tamal RoyChowdhury, Chandra Kant Mishra
Gravitational waveforms capturing binary evolution through the early-inspiral phase play a critical role in extracting orbital features that nearly disappear during the late-inspir…
Effect of double spin-precession and higher harmonics on spin-induced quadrupole moment measurements
Divyajyoti, N. V. Krishnendu, Muhammed Saleem +4
We investigate the prospect of performing a null test of binary black hole (BBH) nature using spin-induced quadrupole moment (SIQM) measurements. This is achieved by constraining a…
Blind spots and biases: the dangers of ignoring eccentricity in gravitational-wave signals from binary black holes
Divyajyoti, Sumit Kumar, Snehal Tibrewal +2
Most gravitational wave (GW) events observed by the LIGO and Virgo detectors are consistent with mergers of binary black holes (BBHs) on quasi-circular orbits. However, some events…
Testing the binary black hole nature of a compact binary coalescence
N. V. Krishnendu, K. G. Arun, Chandra Kant Mishra
We propose a novel method to test the binary black hole (BBH) nature of compact binaries detectable by gravitational wave (GW) interferometers and hence constrain the parameter spa…
Ready-to-use post-Newtonian gravitational waveforms for binary black holes with non-precessing spins: An update
Chandra Kant Mishra, Aditya Kela, K. G. Arun +1
For black-hole binaries whose spins are (anti-) aligned with respect to the orbital angular momentum of the binary, we compute the frequency domain phasing coefficients including t…
LISA as a dark energy probe
K G Arun, Chandra Kant Mishra, Chris Van Den Broeck +3
Recently it was shown that the inclusion of higher signal harmonics in the inspiral signals of binary supermassive black holes (SMBH) leads to dramatic improvements in parameter es…