2,050 research outputs found
The MAGIC telescope
No full textMAGIC (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
The MAGIC Experiment
No full textThe Magic Cherenkov Telescope is located at the Observatory of the Roque de los
Muchachos (ORM) and since 2004 is operative, in may 2005 was started the first yearly
campaign of data taking named Cycle I. During this period the telescope reported signals
from galactic and extragalactic AGN sources. In this report we will describe the
technique for the detection of Very High Energy (VHE) gammas by this class o
Constraining the Dark Matter decay lifetime with very deep observations of the Perseus cluster with the MAGIC telescopes
No full textWe present preliminary results on Dark Matter searches from observations of
the Perseus galaxy cluster with the MAGIC Telescopes. MAGIC is a system of two
Imaging Atmospheric Cherenkov Telescopes located in the Canary island of La
Palma, Spain. Galaxy clusters are the largest known gravitationally bound
structures in the Universe, with masses of ~10^15 Solar masses. There is strong
evidence that galaxy clusters are Dark Matter dominated objects, and therefore
promising targets for Dark Matter searches, particularly for decay signals.
MAGIC has taken almost 300 hours of data on the Perseus Cluster between 2009
and 2015, the deepest observational campaign on any galaxy cluster performed so
far in the very high energy range of the electromagnetic spectrum. We analyze
here a small sample of this data and search for signs of dark matter in the
mass range between 100 GeV and 20 TeV. We apply a likelihood analysis optimized
for the spectral and morphological features expected in the dark matter decay
signals. This is the first time that a dedicated Dark Matter optimization is
applied in a MAGIC analysis, taking into account the inferred Dark Matter
distribution of the source. The results with the full dataset analysis will be
published soon by the MAGIC Collaboration
Gamma-Ray Astronomy with MAGIC above 25 GeV
No full textThe MAGIC telescopes are 17m diameter
Cherenkov telescopes, located on the Canarian island
La Palma (Spain), with an optimal view on the
Northern sky. It is nowadays the only ground-based
instrument able to measure high-energy °-rays below
100 GeV. A recent upgrade of the trigger system
allows to extend the sensitivity down to 25 GeV, which
resulted in the detection of pulsed emission from the
Crab pulsar. The construction of the second telescope
MAGIC-II has been completed and commissioning is
in its final phase phase. We review some recent experimental
results obtained with the single telescope
MAGIC-I
Results of MAGIC galactic sources
No full textMAGIC 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
Accompanying slides for the MAGIC publication "Gamma-ray flaring activity of NGC 1275 in 2016-2017 measured by MAGIC"
No full textThis work is focused on the radio galaxy NGC 1275, the central galaxy of the Perseus cluster. The source was part of a MAGIC monitoring program and showed a very strong flare the night between 31st of December 2016 and the 1st of January 2017. The analysis of simultaneous data taken with MAGIC, Fermi-LAT and KVA telescopes made possible a deep study of the outburst. The very striking result of this paper is the very fast variability observed in gamma-rays: the observed gamma-ray flare therefore challenges all the discussed models for fast variability of VHE gamma-ray emission in active galactic nuclei. Very interesting, isnt'it? The accepted paper is available at the link below:
https://arxiv.org/abs/1806.01559
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Highlights of MAGIC results
No full textMAGIC 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
Target of Opportunity Observations of Blasarswith the Magic Telescope.
No full texthe MAGIC collaboration has been performing Target of Opportunity observations of blazars, when
seen flaring in the optical by the Tuorla blazar monitoring program. In the past three years, there have
been 5 optical alerts during good weather conditions and reasonable declination of the source. Three alerts
have resulted in discoveries of VHE
-rays from previously undetected sources. In this paper we discuss
the discovered sources, MAGIC observations of BL Lac and 3C 279, and we give an outlook for ToO
observations of blazars with MAGIC in the MAXI era
VHE gamma ray Astronomy with the MAGIC Telescope
No full textMAGIC 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
Observations of Extragalactic Sources with the MAGIC Telescope.
No full textMAGIC 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
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