Observations of Extragalactic Sources with the MAGIC Telescope

MAGIC is currently the world's largest single dish ground based imaging atmospheric Cherenkov telescope. During the first year of operation, more than 20 extragalactic sources have been observed and several of them detected. Here we present results of analyzed data, including discussion about spectral and temporal properties of the detected sources. In addition, we discuss implications of the measured energy spectra of distant sources for our knowledge of the extragalactic background light.Comment: to appear in proceedings of Multi Messenger conference, Barcelona, July 4-7, 200

Measurement of the muon decay spectrum with the ICARUS liquid Argon TPC

Examples are given which prove the ICARUS detector quality through relevant physics measurements. We study the muon decay energy spectrum from a sample of stopping muon events acquired during the test run of the ICARUS T600 detector. This detector allows the spatial reconstruction of the events with fine granularity, hence, the precise measurement of the range and dE/dx of the muon with high sampling rate. This information is used to compute the calibration factors needed for the full calorimetric reconstruction of the events. The Michel rho parameter is then measured by comparison of the experimental and Monte Carlo simulated muon decay spectra, obtaining rho = 0.72 +/- 0.06(stat.) +/- 0.08(syst.). The energy resolution for electrons below ~50 MeV is finally extracted from the simulated sample, obtaining (Emeas-Emc)/Emc = 11%/sqrt(E[MeV]) + 2%.Comment: 16 pages, 8 figures, LaTex, A4. Some text and 1 figure added. Final version as accepted for publication in The European Physical Journal

VHE gamma ray Astronomy with the MAGIC Telescope

MAGIC is the largest of the new generation of Imaging Air Cherenkov Telescopes and has started regular data-taking end of 2004. In this report I will give an overview about the status of the experiment and ongoing upgrades, as well as the already rich harvest of galactic and extragalactic data taken so far

Status of the 17 m diameter telescope

The 17m 05 MAGIC telescope for ground-based gamma-ray (\u3b3) astronomy is currently commissioned at the Roque de Los Muchachos, La Palma. The status, with emphasis on some specific technical solutions, and the plans for the near future will be reviewed

Highlights of MAGIC results

MAGIC is the largest Cherenkov telescope currently operating and is in full operation since September 2004. Since then, it is providing a full wealth of exciting new physics results from its observations in the very high energy (VHE) region of galactic and extragalactic locations. Among the main results obtained, the discoveries of new sources and even of entire new classes of sources, as well as the observation of fast variability down to an unprecedented level of precision. Recent results for distant extragalactic sources are also shown: observations that are important for the development of new models of extragalactic background and to evaluate the systematic uncertainties of the imaging Cherenkov technique

Results of MAGIC galactic sources

MAGIC is a single‐dish Cherenkov telescope located on La Palma (Spain), hence with an optimal view on the Northern sky. Sensitive in the 30 GeV—30 TeV energy band, it is nowadays the only ground‐based instrument being able to measure high‐energy γ‐rays below 100 GeV. We review the most recent experimental results on Galactic sources obtained using MAGIC. These include pulsars, binary systems, supernova remnants and unidentified sources

The MAGIC telescope

MAGIC (Major Atmospheric Gamma Imaging Cherenkov telescope) is presently the largest ground-based gamma ray telescope. MAGIC has been taking data regularly since October 2004 at the Roque de los Muchachos Observatory on the island of La Palma. In this paper the MAGIC telescope status, its performances and some preliminary results on observed gamma ray sources are presented