Constraining initial orbital eccentricity of inspiral-dominated gravitational-wave events with an analytic approximant

Hemantakumar Phurailatpam, Gopakumar Achamveedu, Maria Haney +2

The paper introduces the TaylorF2Ecck frequency‑domain approximant for non‑spinning compact binaries on eccentric orbits, implements it in LALSuite, and applies it to GW170817 and…