MAGIC OBSERVATIONS OF VERY HIGH ENERGY γ-RAYS FROM HESS J1813-178

摘要

Recently, the HESS collaboration has reported the detection of γ-ray emission above a few hundred GeV from eight new sources located close to the Galactic plane. The source HESS J1813 —178 has sparked particular interest, as subsequent radio observations imply an association with supernova remnant G12.82-0.02. Triggered by the detection in very high energy γ-rays, a positionally coincident source has also been found in INTEGRAL and ASCA data. In this Letter we present MAGIC observations of HESS J1813—178, resulting in the detection of a differential γ-ray flux consistent with a hard-slope power law, described as dN_γ/(dA dt dE) = (3.3 ± 0.5) x 10~(-12)(E/TeV)~(-2.1±0.2) cm~(-2)s~(-1)TeV~(-1). We briefly discuss the observational technique used and the procedure implemented for the data analysis, and we put this detection in the perspective of multifrequency observations.