The large aperture GRB observatory

Abstract

The Large Aperture GRB Observatory (LAGO) aims at the detection of high energy photons from Gamma Ray Bursts (GRB) using the single particle technique (SPT) in ground based water Cherenkov detectors (WCD). To reach a reasonable sensitivity, high altitude mountain sites have been selected in Mexico (Sierra Negra, 4550ma.s.l.), Bolivia (Chacaltaya, 5300ma.s.l.) and Venezuela (Merida, 4765 m a.s.l.)- We report on the project progresses and the first operation at high altitude, search for bursts in 6 months of preliminary data, as well as search for signal at ground level when satellites report a burst. © 2009 American Institute of Physics.