2 papers
gr-qc2025
Waveform models for the gravitational-wave memory effect: II. Time-domain and frequency-domain models for nonspinning binaries
Arwa Elhashash, David A. Nichols
The nonlinear gravitational-wave (GW) memory effect$\unicode{x2014}$a permanent shift in the GW strain that arises from nonlinear GW interactions in the wave zone$\unicode{x2014}$i…
gr-qc2025
Hybrid model for inspiral-merger-ringdown gravitational waveforms from comparable-mass, nonspinning binary black holes
Nur E. M. Rifat, David A. Nichols, Kent Yagi
Gravitational waves from comparable-mass binary-black-hole mergers are often described in terms of three stages: inspiral, merger and ringdown. Post-Newtonian and black-hole pertur…