Tamal RoyChowdhury

The Cost of Circularity: Quantifying Eccentricity-Induced Biases in Binary Black Hole Inference

Tamal RoyChowdhury, V. Gayathri, R. Gamba, S. Bhaumik et autres

Dynamically assembled binary black holes are expected to retain measurable orbital eccentricity in the LIGO-Virgo-KAGRA band, but most parameter estimation analyses still assume quasi-circular inspirals. This raises a critical question: how strongly does unmodeled eccentricity bias the inferred properties of BBH mergers? …

The Cost of Circularity: Quantifying Eccentricity-Induced Biases in Binary Black Hole Inference

Tamal RoyChowdhury, V. Gayathri, R. Gamba, S. Bhaumik et autres

Dynamically assembled binary black holes are expected to retain measurable orbital eccentricity in the LIGO-Virgo-KAGRA band, but most parameter estimation analyses still assume quasi-circular inspirals. This raises a critical question: how strongly does unmodeled eccentricity bias the inferred properties of BBH mergers? …

us (code pays fourni par la source)

Improved inspiral-merger-ringdown model for BBHs on elliptical orbits

Pratul Manna, Tamal RoyChowdhury, C. 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-inspiral and subsequent merger phase due to radiation reaction forces; for instance, the effect of orbital eccentricity. Phenomenological approaches that …

High accuracy post-Newtonian and numerical relativity comparisons involving higher modes for eccentric binary black holes and a dominant mode eccentric inspiral-merger-ringdown model

Abhishek Chattaraj, Tamal RoyChowdhury, Divyajyoti, C. Mishra et autres

Spherical harmonic modes of gravitational waveforms for inspiraling compact binaries in eccentric orbits from post-Newtonian (PN) theory accurate to third post-Newtonian order and those extracted from numerical relativity (NR) simulations for binary black holes (BBHs) are compared. We combine results from the …

in, us (code pays fourni par la source)

High accuracy post-Newtonian and numerical relativity comparisons involving higher modes for eccentric binary black holes and a dominant mode eccentric inspiral-merger-ringdown model

Abhishek Chattaraj, Tamal RoyChowdhury, Divyajyoti, C. Mishra et autres

Spherical harmonic modes of gravitational waveforms for inspiraling compact binaries in eccentric orbits from post-Newtonian (PN) theory accurate to third post-Newtonian order, and those extracted from numerical relativity (NR) simulations for binary black holes (BBHs) are compared. We combine results from the …