Fermi Observations for Gravitational Wave Counterparts

The Fermi Gamma-ray Space Telescope monitors the sky for gamma-ray transients, making it an ideal facility for detecting counterparts to gravitational wave sources. As demonstrated with the detection of GRB 170817A, 1.7 seconds after the LIGO-Virgo detection of the binary neutron star merger, GW170817, the Fermi Gamma-ray Burst Monitor (GBM) began the expansive multi-wavelength campaign. These observations led to important insights into the physics of compact object mergers and their emission components. I will describe both the GBM and Large Area Telescope (LAT) capabilities and pipelines for gravitational wave counterpart searches. The observations of gravitational wave counterparts provide unique insights into the physics of neutron stars and gamma-ray bursts, and implications for fundamental physics.