activity
19962026
most citedVariable VHE gamma-ray emission from Markarian 501

547 citations · 13.7k across the 233 of their papers we have counts for

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Showing 2008 · astro-phShow all

12 papers · 2 filters

astro-ph2008★ 21 cited

MAGIC Observations of PG 1553+113 during a Multiwavelength Campaign in July 2006

MAGIC Collaboration, Albert

The active galactic nucleus PG 1553+113 was observed by the MAGIC telescope in July 2006 during a multiwavelength campaign, in which telescopes in the optical, X-ray, and very high…

astro-ph2008★ 112 cited

The June 2008 flare of Markarian 421 from optical to TeV energies

The Agile Collaboration, Webt Collaboration, Magic Collaboration +2

We present optical, X-ray, high energy ( GeV) and very high energy ( GeV; VHE) observations of the high-frequency peaked blazar Mrk 421 taken betwee…

astro-ph2008★ 125 cited

Improving the performance of the single-dish Cherenkov telescope MAGIC through the use of signal timing

MAGIC Collaboration

The Cherenkov light flashes produced by Extensive Air Showers are very short in time. A high bandwidth and fast digitizing readout, therefore, can minimize the influence of the bac…

astro-ph2008★ 19 cited

MAGIC upper limits to the VHE gamma-ray flux of 3C454.3 in high emission state

H. Anderhub, S. Vercellone, I. Donnarumma +2

We report upper limits to the very high energy flux (E>100 GeV) of the flat spectrum radio quasar 3C454.3 (z=0.859) derived by the Cherenkov telescope MAGIC during the high states…

astro-ph2008★ 60 cited

Discovery of a very high energy gamma-ray signal from the 3C 66A/B region

MAGIC Collaboration, E. Aliu

The MAGIC telescope observed the region around the distant blazar 3C 66A for 54.2 h in 2007 August-December. The observations resulted in the discovery of a gamma-ray source at ene…

astro-ph2008★ 203 cited

Observation of Pulsed Gamma-rays Above 25 GeV from the Crab Pulsar with MAGIC

The MAGIC Collaboration, E. Aliu

One fundamental question about pulsars concerns the mechanism of their pulsed electromagnetic emission. Measuring the high-end region of a pulsar's spectrum would shed light on thi…

astro-ph2008★ 446 cited

Very-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe?

MAGIC Collaboration, J. Albert

The atmospheric Cherenkov gamma-ray telescope MAGIC, designed for a low-energy threshold, has detected very-high-energy gamma rays from a giant flare of the distant Quasi-Stellar R…

astro-ph2008★ 111 cited

Periodic very high energy gamma-ray emission from LS I +61 303 observed with the MAGIC telescope

MAGIC Collaboration, J. Albert

The MAGIC collaboration has recently reported the discovery of gamma-ray emission from the binary system LS I +61 303 in the TeV energy region. Here we present new observational re…

astro-ph2008★ 108 cited

Very High Energy Gamma-Ray Observations of a Strong Flaring Activity in M87 in 2008 February

MAGIC Collaboration, J. Albert

M87 is the only known non blazar radio galaxy to emit very high energy (VHE) gamma-rays. During a monitoring program of M87, a rapid flare in VHE gamma-rays was detected by the MAG…

astro-ph2008★ 84 cited

MAGIC observations of the unidentified TeV gamma-ray source TeV J2032+4130

J. Albert

We observed the first known very high energy (VHE) gamma-ray emitting unidentified source, TeV J2032+4130, for 94 hours with the MAGIC telescope. The source was detected with a sig…

astro-ph2008★ 100 cited

Simultaneous multiwavelength observations of the blazar 1ES1959+650 at a low TeV flux

G. Tagliaferri, L. Foschini, G. Ghisellini +7

We present the results from a multiwavelength campaign on the TeV blazar 1ES 1959+650, performed in May, 2006. Data from the optical, UV, soft- and hard-X-ray and very high energy…

astro-ph2008★ 57 cited

Multi-wavelength (radio, X-ray and gamma-ray) observations of the gamma-ray binary LS I +61 303

MAGIC Collaboration, J. Albert

We present the results of the first multiwavelength observing campaign on the high-mass X-ray binary LS I +61 303 comprising observations at the TeV regime with the MAGIC telescope…