5 citations · 8 across the 4 of their papers we have counts for
7 papers
Bochner Flatness and Soliton Dynamics in Lorentzian Kähler Spacetime Geometry
Karthika Ramasamya, Lavanya Kumara, Soumendu Roy +1
We study Riemann solitons and -hyperbolic Ricci solitons on Bochner-flat Lorentzian Kähler spacetime manifolds. Under the Einstein field equations with cosmological constant a…
Line-of-sight acceleration in compact binaries with higher harmonics and eccentricity
Soumen Roy, Justin Janquart
Direct detections of gravitational waves provide a unique opportunity to probe the astrophysical origin of compact binary mergers. The formation channels of these systems remain hi…
Scalar fields around black hole binaries in LIGO-Virgo-KAGRA
Soumen Roy, Rodrigo Vicente, Josu C. Aurrekoetxea +2
Light scalar particles arise naturally in many extensions of the Standard Model and are compelling dark-matter candidates. Gravitational interactions near black holes can trigger t…
Tests of General Relativity with GW230529: a neutron star merging with a lower mass-gap compact object
Elise M. Sänger, Soumen Roy, Michalis Agathos +16
On May 29, 2023, the LIGO Livingston observatory detected the gravitational-wave signal GW230529_181500 from the merger of a neutron star with a lower mass-gap compact object. Its…
Improved parametrized test of general relativity using the IMRPhenomX waveform family: Including higher harmonics and precession
Soumen Roy, Maria Haney, Geraint Pratten +2
When testing general relativity (GR) with gravitational wave observations, parametrized tests of deviations from the expected strong-field source dynamics are one of the most widel…
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…