Appears in collection : 2021 - T1B - WS1 - Gravitational waves: a new messenger to explore the universe

• Basics of gravitational-wave modeling; waveform models in PN theory, their range of validity, and their use in LIGO-Virgo template banks.
  

• Motivations and development of the effective-one-body (EOB) formalism: conservative dynamics.
  

• The effective-one-body (EOB) formalism: dissipative dynamics; inspiral-merger- ringdown waveforms and their completion using numerical-relativity waveforms.
  

• LIGO-Virgo inference studies using waveform models: science highlights on astrophysics, cosmology and tests of General Relativity.