The Large Aperture GRB Observatory (LAGO) Humberto Salazar for the LAGO collaboration August 11, 2011.

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Presentation transcript:

The Large Aperture GRB Observatory (LAGO) Humberto Salazar for the LAGO collaboration August 11, 2011

Main goal:  Search for GRBs with gammas in the range energy 1 GeV - 1 TeV. Single particle technique High altitude water cerenkov detectors

Fermi-LAT, > 10 GeV photons event (1s) (1sec !

LAG0 : Single particle technique

LAGO 2011 * 4550m asl 4470m asl 4780m asl 5250m asl 1400m asl * Bariloche, Colombia, Venezuela, Mexico and Guatemala have Universities

Chacaltaya´s LAGO WCDs array

 DAQ System (Old Auger electronics).  Rate; 5 ms (above 0.5 phe)  Calibration software

Sierra Negra Array  4550 asl.  4 Water Cherenkov Detectors (3 operating)

 DAQ System.  Rate; 5 ms

Marcapomacocha, Peru.

Some candidates But, No confirmation: Fluence limits Data analysis and results

SH poster & SH poster

Present and Future plans for LAGO… Large area, New electronics. New sites. 40m2 4m2

New Detector Sierra Negra: 4x (40m2) x1.1m height

Rate vs distance Rate/seg distance to the center (cm) 7, , , , Threshold 0.9 phe For simulations of the performance of the detectors see OG poster

New 4 Channels Sierra Negra. Baseline noise. Average rate (5seg)

New detectors and new Bolivia, Peru and Ecuador ? (>5000masl).

Conclusions An efficient dedicated experiment can be done at low cost by using WCD at high altitude.