On the interpretation of the Fermi GBM transient observed in coincidence with LIGO Gravitational Wave Event GW150914

Understand

The weak transient detected by the Fermi Gamma-ray Burst Monitor (GBM) 0.4 s after GW150914 has generated much speculation regarding its possible association with the black-hole binary merger.

• Investigation of the GBM data by Connaughton et al.
• (2016) revealed a source location consistent with GW150914 and a spectrum consistent with a weak, short Gamma-Ray Burst.
• Greiner et al.