Gravitational wave events detected so far by LIGO and Virgo detectors can safely be assumed to be coalescence of binary black holes (BBHs) in inspiralling-circular orbits. Although, the data from a small set of events also supports the eccentric merger hypotheses. With improved detector sensitivities, it is likely that we shall witness the first confirmed detection of an eccentric merger during the fourth observing run scheduled to start next year. Stringent source modelling requirements in nearly all analyses have led to numerous ongoing efforts focusing on including the effect of eccentricity in signal waveforms. In this talk I shall briefly discuss the readiness of these efforts. I shall also discuss in some length a recent effort which focuses on construction of a complete inspiral-merger-ringdown waveform from eccentric BBH mergers using gravitational wave phenomenology.

Reference: https://arxiv.org/abs/2204.02377