Welcome to MAGIC!
The pioneering instrument for covering the electromagnetic spectrum in the energy range above 30 GeV
The two MAGIC telescopes. Image credits: Daniel Lopez/IAC
MAGIC (Major Atmospheric Gamma Imaging Cherenkov) is a system of two 17 m
diameter, F/1.03 Imaging Atmospheric Cherenkov Telescopes (IACT).
They are dedicated to the observation of gamma rays from galactic and
extragalactic sources in the very high energy range (VHE, 30 GeV to 100
TeV).
The MAGIC telescopes are currently run by an international collaboration
of about 165 astrophysicists from 24 institutions and consortia from 11
countries.
MAGIC in a Nutshell
The main goal of the MAGIC project was to build an instrument that could
perform measurements in an energy range below 100 GeV, down to about 30
GeV, up to the high-energetic
"terra incognita" of the electromagnetic emission spectrum,
traditionally considered as the classical domain of satellite-born
instruments. MAGIC researchers were
anticipating finding new classes of gamma-ray sources such as, for
example, pulsars and Gamma Ray Bursts (GRB). Because of the strong
absorption of TeV
gamma rays by the extragalactic background light, MAGIC was aiming to
measure sources at few tens of GeV, where the universe becomes
progressively
more transparent. At lower energies, one can search for powerful sources
residing at large redshifts. The telescopes measure Cherenkov light
images of extended air showers from a target source direction. The
software analysis allows, with very high efficiency, to select
neutral gamma-ray induced electromagnetic showers from the several
orders of magnitudes more intense isotropic background due to the
charged particle (mostly hadron) induced
showers. The MAGIC telescopes are located at a height of 2200 m a.s.l.
on the Roque de los Muchachos European Northern Observatory on the
Canary Island of La Palma
(28°N, 18°W).
The first ideas on the project date back to mid-1994. While several groups joined the MAGIC effort already in 1996, the formal collaboration for constructing the first MAGIC telescope (MAGIC-I) has been formed in 1998. The first telescope was built between 2001 and 2003 and the scientific observations started in 2004. The commissioning of second telescope (MAGIC-II) has been finished in autumn 2009. The two telescopes, separated by 85 meters, are usually operated in coincidence, in the so-called stereoscopic mode. Only events which trigger both telescopes in a narrow time window of 180 nanoseconds are recorded and analyzed. Compared to the stand-alone MAGIC-I, operated till mid-2009, the use of the two telescopes provided a significant increase of the sensitivity due to stronger background rejection. The energy and angular resolutions have been improved, mainly due to the higher precision of the three-dimensional reconstruction of air shower impact point and its incoming direction.
⤷ Learn more about MAGIC.The first ideas on the project date back to mid-1994. While several groups joined the MAGIC effort already in 1996, the formal collaboration for constructing the first MAGIC telescope (MAGIC-I) has been formed in 1998. The first telescope was built between 2001 and 2003 and the scientific observations started in 2004. The commissioning of second telescope (MAGIC-II) has been finished in autumn 2009. The two telescopes, separated by 85 meters, are usually operated in coincidence, in the so-called stereoscopic mode. Only events which trigger both telescopes in a narrow time window of 180 nanoseconds are recorded and analyzed. Compared to the stand-alone MAGIC-I, operated till mid-2009, the use of the two telescopes provided a significant increase of the sensitivity due to stronger background rejection. The energy and angular resolutions have been improved, mainly due to the higher precision of the three-dimensional reconstruction of air shower impact point and its incoming direction.
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(Image props to Universal Pictures)
With the possible exception of Simpleton’s golden goose, the coolest fairy tale home accessory ever has got to be the evil queen’s magic mirror in Snow White.
The Grimm Brothers’ description of the mirror is positively medieval. But in the language of Silicon Valley, that magic-mirror gadget was an augmented-reality display with face recognition and a voice-controlled artificial intelligence virtual assistant that was capable of querying remote databases of females ranked by fairness.
Don’t look now, but magic mirrors are no longer just for evil queens: http://www.houzz.com/ideabooks/2330193/list/Magic-Mirrors-Emerge-From-Fairy-Tales
(Image props to Universal Pictures)
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