Very High Energy gamma ray astronomy and cosmic ray physics are the main goals of the ARGO-YBJ experiment. The detector is located in Tibet (People’s Republic of China) and is a full coverage Extensive Air Shower array consisting of a carpet of Resistive Plate Chambers (RPC). Altitude and full coverage ensure an energy threshold of few hundreds of GeV for primary photons detected in shower mode, while the RPC time resolution gives a good pointing accuracy, thus allowing a high sensitivity to gamma-ray sources. The large field of view and the high duty-cycle allow the continuous monitor of the Northern sky in the declination band (-10°, +70°). The detector operates also in scaler mode in order to look for GRB signal in the range 1-100 GeV in coincidence with GRB detection by satellites. The performances of the detector and the present results concerning VHE gamma-ray astronomy will be presented.
VHE gamma-astronomy observations with the ARGO-YBJ detector
BERNARDINI, Paolo
2010-01-01
Abstract
Very High Energy gamma ray astronomy and cosmic ray physics are the main goals of the ARGO-YBJ experiment. The detector is located in Tibet (People’s Republic of China) and is a full coverage Extensive Air Shower array consisting of a carpet of Resistive Plate Chambers (RPC). Altitude and full coverage ensure an energy threshold of few hundreds of GeV for primary photons detected in shower mode, while the RPC time resolution gives a good pointing accuracy, thus allowing a high sensitivity to gamma-ray sources. The large field of view and the high duty-cycle allow the continuous monitor of the Northern sky in the declination band (-10°, +70°). The detector operates also in scaler mode in order to look for GRB signal in the range 1-100 GeV in coincidence with GRB detection by satellites. The performances of the detector and the present results concerning VHE gamma-ray astronomy will be presented.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
