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Topics In Gravitational-Wave Astrophysics, Prayush Kumar
Topics In Gravitational-Wave Astrophysics, Prayush Kumar
Dissertations - ALL
In this dissertation we study the applicability of different waveform models in
gravitational wave searches for comparable mass binary black holes. We determine
the domain of applicability of the computationally inexpensive closed form models,
and the same for the semi-analytic models that have been calibrated to Numerical
Relativity simulations (and are computationally more expensive). We further explore
the option of using hybrid waveforms, constructed by numerically stitching analytic
and numerical waveforms, as filters in gravitational wave detection searches. Beyond
matched-filtering, there is extensive processing of the filter output before a detection
candidate can be confirmed. We utilize recent results from …