The ARGO-YBJ experiment is the first EAS detector combining a very high mountain altitude (4300 m a.s.l.) to a full coverage detection surface. These features allow ARGO-YBJ to work in the typical energy range of Cherenkov telescopes, with an energy threshold of a few hun- dreds GeV. The low threshold and the large field of view (<2 sr) make ARGO-YBJ suitable to monitor the gamma ray sky, searching for un- known sources and unexpected events, like Active Galactic Nuclei flaring episodes or high energy Gamma Ray Bursts. In this paper we present the preliminary results on Gamma Ray Astron- omy obtained with the events collected in the first months of data taking, in particular the detection of gamma rays from the Crab Nebula, the ob- servation of a Markarian 421 outburst in July-August 2006, and finally a search for Gamma Ray Bursts emission in the GeV energy range using the scaler mode technique.
Bacci, C., Bussino, S.A.M., Celio, P., DE VINCENZI, M., Mari, S.M., Pistilli, P. (2007). Gamma ray astronomy with ARGO-YBJ: First observations.. In 5th Workshop on Science with the New Generation High Energy Gamma-ray Experiments (SciNe-GHE07) (pp.217-224). Frascati : LNF-SIS.
Gamma ray astronomy with ARGO-YBJ: First observations.
BACCI, Cesare;BUSSINO, Severino Angelo Maria;CELIO, PAOLA;DE VINCENZI, Mario;MARI, Stefano Maria;PISTILLI, Pio
2007-01-01
Abstract
The ARGO-YBJ experiment is the first EAS detector combining a very high mountain altitude (4300 m a.s.l.) to a full coverage detection surface. These features allow ARGO-YBJ to work in the typical energy range of Cherenkov telescopes, with an energy threshold of a few hun- dreds GeV. The low threshold and the large field of view (<2 sr) make ARGO-YBJ suitable to monitor the gamma ray sky, searching for un- known sources and unexpected events, like Active Galactic Nuclei flaring episodes or high energy Gamma Ray Bursts. In this paper we present the preliminary results on Gamma Ray Astron- omy obtained with the events collected in the first months of data taking, in particular the detection of gamma rays from the Crab Nebula, the ob- servation of a Markarian 421 outburst in July-August 2006, and finally a search for Gamma Ray Bursts emission in the GeV energy range using the scaler mode technique.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
