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Constraints on the binary black hole nature of GW151226 and GW170608 from the measurement of spin-induced quadrupole moments
N. V. Krishnendu, M. Saleem, A. Samajdar +3
According to the "no-hair" conjecture, a Kerr black hole (BH) is completely described by its mass and spin. In particular, the spin-induced quadrupole moment of a Kerr BH with mass…
A morphology-independent search for gravitational wave echoes in data from the first and second observing runs of Advanced LIGO and Advanced Virgo
Ka Wa Tsang, Archisman Ghosh, Anuradha Samajdar +4
Gravitational wave echoes have been proposed as a smoking-gun signature of exotic compact objects with near-horizon structure. Recently there have been observational claims that ec…
Constraints on Lorentz Invariance Violations from Gravitational Wave Observations
Anuradha Samajdar
Using a deformed dispersion relation for gravitational waves, Advanced LIGO and Advanced Virgo have been able to place constraints on violations of local Lorentz invariance as well…
All-sky search for short gravitational-wave bursts in the second Advanced LIGO and Advanced Virgo run
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1186
We present the results of a search for short-duration gravitational-wave transients in the data from the second observing run of Advanced LIGO and Advanced Virgo. We search for gra…
Waveform systematics for binary neutron star gravitational wave signals: Effects of spin, precession, and the observation of electromagnetic counterparts
Anuradha Samajdar, Tim Dietrich
Extracting the properties of a binary system emitting gravitational waves relies on models describing the last stages of the compact binary coalescence. In this article, we study p…
Improving the NRTidal model for binary neutron star systems
Tim Dietrich, Anuradha Samajdar, Sebastian Khan +3
Accurate and fast gravitational waveform (GW) models are essential to extract information about the properties of compact binary systems that generate GWs. Building on previous wor…