First Results from HAWC on GRBs

Understand

In this contribution, the first results of HAWC, searching for VHE gamma-ray emission from gamma-ray bursts (GRBs) reported by $\mathit{Swift}$, are presented.

• The HAWC gamma-ray observatory is operating in central Mexico at an altitude of 4,100 m above sea level.
• With an instantaneous field of view of approximately 2 sr and over 95% duty cycle (up time fraction), HAWC is an ideal detector to perform ground-based gamma-ray observations of GRBs.
• Though optimised for TeV observations, HAWC has significant sensitivity to short transients of energies as small as 50 GeV.