Since the end of 2007 the ARGO-YBJ experiment has been observing the Crab Nebula with a duty cycle larger than 90%. Crab is a well known source of gamma rays in the TeV region. The data sample of events coming from the source contains a fraction of gamma rays with a known energy spectrum. Using this data sample we implemented selection criteria that increase the sensitivity of the experiment to point-like gamma ray sources. In this work the results of more than one year of Crab observation and the selection method used to improve the ARGO-YBJ sensitivity are presented.
Event selection to improve ARGO-YBJ sensitivity to gamma sources using Crab as a standard candle
Marsella G.;Bleve C.;Martello D.;
2009-01-01
Abstract
Since the end of 2007 the ARGO-YBJ experiment has been observing the Crab Nebula with a duty cycle larger than 90%. Crab is a well known source of gamma rays in the TeV region. The data sample of events coming from the source contains a fraction of gamma rays with a known energy spectrum. Using this data sample we implemented selection criteria that increase the sensitivity of the experiment to point-like gamma ray sources. In this work the results of more than one year of Crab observation and the selection method used to improve the ARGO-YBJ sensitivity are presented.File in questo prodotto:
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