Performance of the MAGIC stereo system obtained with Crab Nebula data

By M. C. J. Aleksi'c, E. Alvarez, L. A. Antonelli, P. Antoranz, M. Asensio, Michael Backes, J. Barrio, D. Bastieri, J. Gonz'alez, W. Bednarek and 215 more. Astroparticle physics, 2011

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MAGIC is a system of two Imaging Atmospheric Cherenkov Telescopes located in the Canary island of La Palma. Since autumn 2009 both telescopes have been working together in stereoscopic mode, providing a significant improvement with respect to the previous single-telescope observations. We use observations of the Crab Nebula taken at low zenith angles to assess the performance of the MAGIC stereo system. The trigger threshold of the MAGIC telescopes is 50 - 60 GeV. Advanced stereo analysis techniques allow MAGIC to achieve a sensitivity as good as (0.76 +/- 0.03)% of the Crab Nebula flux in 50 h of observations above 290 GeV. The angular resolution at those energies is better than similar to 0.07 degrees. We also perform a detailed study of possible systematic effects which may influence the analysis of the data taken with the MAGIC telescopes. (C) 2011 Elsevier B.V. All rights reserved.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/ba64d19bcff1f6a98df5a050eaa0c287a681805f

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In Astronomy and Astrophysics

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Citations in the corpus

• Measurement of the Crab Nebula Spectrum Past 100 TeV with HAWC (2019, methodology): “This is a significant improvement over the previously published HAWC analysis (see Figure 2 of Abeysekara et al. (2017)) For comparison, IACTs typically have a resolution of ∼8-15% at 1 TeV and ∼15-35% at 50 TeV (Aleksić et al. 2012; Parsons & Hinton 2014; Park 2015).”
• Sensitivity of the high altitude water Cherenkov detector to sources of multi-TeV gamma rays (2013, methodology): “Quarter-decade energy bins are found by normalizing the bins in Table 1 to facilitate comparison to 50-hour IACT[3][16][17] and 3-year Fermi[18] sensitivity calculations.”