180 citations · 884 across the 51 of their papers we have counts for
24 papers · 1 filter
Effect of Ignoring Eccentricity in Testing General Relativity with Gravitational Waves
Purnima Narayan, Nathan K. Johnson-McDaniel, Anuradha Gupta
Detections of gravitational waves emitted from binary black hole coalescences allow us to probe the strong-field dynamics of general relativity (GR). One can compare the observed g…
Cosmography with bright and Love sirens
Arnab Dhani, Ssohrab Borhanian, Anuradha Gupta +1
Precision cosmology is crucial to understand the different energy components in the Universe and their evolution through cosmic time. Gravitational wave sources are standard sirens…
Constraining properties of asymmetric dark matter candidates from gravitational-wave observations
Divya Singh, Anuradha Gupta, Emanuele Berti +2
The accumulation of certain types of dark matter particles in neutron star cores due to accretion over long timescales can lead to the formation of a mini black hole. In this scena…
Constraining runaway dilaton models using joint gravitational-wave and electromagnetic observations
Arnab Dhani, Anuradha Gupta, B. S. Sathyaprakash
With the advent of gravitational-wave astronomy it has now been possible to constrain modified theories of gravity that were invoked to explain the dark energy. In a class of dilat…
Population inference of spin-induced quadrupole moments as a probe for non-black hole compact binaries
Muhammed Saleem, N. V. Krishnendu, Abhirup Ghosh +4
Gravitational-wave (GW) measurements of physical effects such as spin-induced quadrupole moments can distinguish binaries consisting of black holes from non-black hole binaries. Wh…
Towards inference of overlapping gravitational wave signals
Elia Pizzati, Surabhi Sachdev, Anuradha Gupta +1
Merger rates of binary black holes, binary neutron stars, and neutron star-black hole binaries in the local Universe (i.e., redshift ), inferred from the Laser Interferometer…
Tests of general relativity using multiband observations of intermediate mass binary black hole mergers
Sayantani Datta, Anuradha Gupta, Shilpa Kastha +2
Observation of gravitational waves (GWs) in two different frequency bands is referred to as multiband GW astronomy. With the planned Laser Interferometric Space Antenna (LISA) oper…
Multiparameter tests of general relativity using multiband gravitational-wave observations
Anuradha Gupta, Sayantani Datta, Shilpa Kastha +3
In this Letter we show that multiband observations of stellar-mass binary black holes by the next generation of ground-based observatories (3G) and the space-based Laser Interferom…
Black holes in the low mass gap: Implications for gravitational wave observations
Anuradha Gupta, Davide Gerosa, K. G. Arun +3
Binary neutron-star mergers will predominantly produce black-hole remnants of mass , thus populating the putative \emph{low mass gap} between neutron stars and…
Testing the multipole structure and conservative dynamics of compact binaries using gravitational wave observations: The spinning case
Shilpa Kastha, Anuradha Gupta, K. G. Arun +2
In an earlier work [S. Kastha et al., PRD {\bf 98}, 124033 (2018)], we developed the {\it parametrized multipolar gravitational wave phasing formula} to test general relativity, fo…
Effect of orbital eccentricity on the dynamics of precessing compact binaries
Khun Sang Phukon, Anuradha Gupta, Sukanta Bose +1
We study precession dynamics of generic binary black holes in eccentric orbits using an effective potential based formalism derived in [M. Kesden et al., PRL {\bf 114}, 081103 (201…
The GstLAL Search Analysis Methods for Compact Binary Mergers in Advanced LIGO's Second and Advanced Virgo's First Observing Runs
Surabhi Sachdev, Sarah Caudill, Heather Fong +26
After their successful first observing run (September 12, 2015 - January 12, 2016), the Advanced LIGO detectors were upgraded to increase their sensitivity for the second observing…
Small Spins of Primordial Black Holes from Random Geometries: Bekenstein-Hawking Entropy and Gravitational Wave Observations
Eugenio Bianchi, Anuradha Gupta, Hal M. Haggard +1
Black hole entropy is a robust prediction of quantum gravity with no established phenomenological consequences to date. We use the Bekenstein-Hawking entropy formula and general-re…
Systematic effects from black hole-neutron star waveform model uncertainties on the neutron star equation of state
Kabir Chakravarti, Anuradha Gupta, Sukanta Bose +12
We identify various contributors of systematic effects in the measurement of the neutron star (NS) tidal deformability and quantify their magnitude for several types of neutron sta…
Testing the multipole structure of compact binaries using gravitational wave observations
Shilpa Kastha, Anuradha Gupta, K. G. Arun +2
We propose a novel method to test the consistency of the multipole moments of compact binary systems with the predictions of General Relativity (GR). The multipole moments of a com…
Detection and characterization of spin-orbit resonances in the advanced gravitational wave detectors era
Chaitanya Afle, Anuradha Gupta, Bhooshan Gadre +12
In this paper, we test the performance of templates in detection and characterization of Spin-orbit resonant (SOR) binaries. We use precessing SEOBNRv3 waveforms as well as {\it fo…
A unified approach to discriminators for searches of gravitational waves from compact binary coalescences
Sanjeev Dhurandhar, Anuradha Gupta, Bhooshan Gadre +1
We describe a general mathematical framework for discriminators in the context of the compact binary coalescence search. We show that with any is associated a vector bu…
Inspiral waveforms for spinning compact binaries in a new precessing convention
Anuradha Gupta, Achamveedu Gopakumar
It is customary to use a precessing convention, based on Newtonian orbital angular momentum , to model inspiral gravitational waves from generic spinning compact b…
Towards mitigating the effect of sine-Gaussian noise transients on searches for gravitational waves from compact binary coalescences
Sukanta Bose, Sanjeev Dhurandhar, Anuradha Gupta +1
Gravitational wave (GW) signals were recently detected directly by LIGO from the coalescences of two black hole pairs. These detections have strengthened our belief that compact bi…
Post-newtonian analysis of precessing convention for spinning compact binaries
Anuradha Gupta, Achamveedu Gopakumar
A precessing source frame, constructed using the Newtonian orbital angular momentum , can be invoked to model inspiral gravitational waves from generic spinning co…
Time-domain inspiral templates for spinning compact binaries in quasi-circular orbits
Anuradha Gupta, Achamveedu Gopakumar
We present a prescription to compute the time-domain gravitational wave (GW) polarization states associated with spinning compact binaries inspiraling along quasi-circular orbits.…
Memory effect from spinning unbound binaries
Lorenzo De Vittori, Achamveedu Gopakumar, Anuradha Gupta +1
We present a recently developed prescription to obtain ready-to-use gravitational wave (GW) polarization states for spinning compact binaries on hyperbolic orbits. We include leadi…
Gravitational waves from spinning compact binaries in hyperbolic orbits
Lorenzo De Vittori, Achamveedu Gopakumar, Anuradha Gupta +1
Compact binaries in hyperbolic orbits are plausible gravitational wave (GW) sources for the upcoming and planned GW observatories. We develop an efficient prescription to compute p…
Time-domain inspiral templates for spinning compact binaries in quasi-circular orbits described by their orbital angular momenta
Anuradha Gupta, Achamveedu Gopakumar
We present a prescription to compute the time-domain gravitational wave (GW) polarization states associated with spinning compact binaries inspiraling along quasi-circular orbits.…