How Gravitational-wave Observations Can Shape the Gamma-ray Burst
  Paradigm
  By reaching through shrouding blastwaves, efficiently discovering off-axis
events, and probing the central engine at work, gravitational wave (GW)
observations will soon revolutionize the study of gamma-ray bursts. Already,
analyses of GW data targeting gamma-ray bursts have helped constrain the
central engines of selected events. Advanced GW detectors with significantly
improved sensitivities are under construction. After outlining the GW emission
mechanisms from gamma-ray burst progenitors (binary coalescences, stellar core
collapses, magnetars, and others) that may be detectable with advanced
detectors, we review how GWs will improve our understanding of gamma-ray burst
central engines, their astrophysical formation channels, and the prospects and
methods for different search strategies. We place special emphasis on
multimessenger searches. To achieve the most scientific benefit, GW,
electromagnetic, and neutrino observations should be combined to provide
greater discriminating power and science reach.
