activity
20132025
most citedThe major upgrade of the MAGIC telescopes, Part II: A performance study using observations of the Crab Nebula

534 citations · 3.9k across the 64 of their papers we have counts for

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48 papers · 1 filter

astro-ph.HE2019★ 4 cited

Statistics of VHE gamma-Rays in Temporal Association with Radio Giant Pulses from the Crab Pulsar

MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +146

The aim of this study is to search for evidence of a common emission engine between radio giant pulses (GPs) and very-high-energy (VHE, E>100 GeV) gamma-rays from the Crab pulsar.…

astro-ph.HE2019★ 10 cited

MAGIC and Fermi-LAT gamma-ray results on unassociated HAWC sources

M. L. Ahnen, S. Ansoldi, L. A. Antonelli +336

The HAWC Collaboration released the 2HWC catalog of TeV sources, in which 19 show no association with any known high-energy (HE; E > 10 GeV) or very-high-energy (VHE; E > 300 GeV)…

astro-ph.HE2018★ 84 cited

The extreme HBL behaviour of Markarian 501 during 2012

M. L. Ahnen, S. Ansoldi, L. A. Antonelli +276

A multiwavelength campaign was organized to take place between March and July of 2012. Excellent temporal coverage was obtained with more than 25 instruments, including the MAGIC,…

astro-ph.HE2018★ 235 cited

The blazar TXS 0506+056 associated with a high-energy neutrino: insights into extragalactic jets and cosmic ray acceleration

S. Ansoldi, L. A. Antonelli, C. Arcaro +146

A neutrino with energy of 290 TeV, IceCube-170922A, was detected in coincidence with the BL Lac object TXS~0506+056 during enhanced gamma-ray activity, with chance coincidenc…

astro-ph.HE2018★ 26 cited

The broad-band properties of the intermediate synchrotron peaked BL Lac S2 0109+22 from radio to VHE gamma rays

MAGIC Collaboration, S. Ansoldi, L. A. Antonelli +163

The MAGIC telescopes observed S2 0109+22 in 2015 July during its flaring activity in high energy gamma rays observed by Fermi-LAT. We analyse the MAGIC data to characterise the ver…

astro-ph.HE2018★ 54 cited

Multi-wavelength characterization of the blazar S5~0716+714 during an unprecedented outburst phase

MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +187

The BL Lac object S5~0716+714, a highly variable blazar, underwent an impressive outburst in January 2015 (Phase A), followed by minor activity in February (Phase B). The MAGIC obs…

astro-ph.HE2018★ 53 cited

Gamma-ray flaring activity of NGC 1275 in 2016-2017 measured by MAGIC

MAGIC collaboration, S. Ansoldi, L. A. Antonelli +152

We report on the detection of flaring activity from the Fanaroff-Riley I radio galaxy NGC 1275 in very-high-energy (VHE, E 100 GeV) gamma rays with the MAGIC telescopes. Observ…

astro-ph.HE2018★ 28 cited

The detection of the blazar S4 0954+65 at very-high-energy with the MAGIC telescopes during an exceptionally high optical state

MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +169

The very-high-energy (VHE, GeV) -ray MAGIC observations of the blazar S4 0954+65, were triggered by an exceptionally high flux state of emission in the optical. Th…

astro-ph.HE2017★ 43 cited

Indirect dark matter searches in the dwarf satellite galaxy Ursa Major II with the MAGIC Telescopes

MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +142

The dwarf spheroidal galaxy Ursa Major II (UMaII) is believed to be one of the most dark-matter dominated systems among the Milky Way satellites and represents a suitable target fo…

astro-ph.HE2017

MAGIC Contributions to the 35th International Cosmic Ray Conference (ICRC2017)

MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +143

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…

astro-ph.HE2017★ 45 cited

Constraining Lorentz invariance violation using the Crab Pulsar emission observed up to TeV energies by MAGIC

MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +142

Spontaneous breaking of Lorentz symmetry at energies on the order of the Planck energy or lower is predicted by many quantum gravity theories, implying non-trivial dispersion relat…

astro-ph.HE2017★ 14 cited

Search for very-high-energy gamma-ray emission from the microquasar Cygnus X-1 with the MAGIC telescopes

MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +144

The microquasar Cygnus X-1 displays the two typical soft and hard X-ray states of a black-hole transient. During the latter, Cygnus X-1 shows a one-sided relativistic radio-jet. Re…

astro-ph.HE2017★ 11 cited

MAGIC observations of the microquasar V404 Cygni during the 2015 outburst

M. L. Ahnen, S. Ansoldi, L. A. Antonelli +142

The microquasar V404 Cygni underwent a series of outbursts in 2015, June 15-31, during which its flux in hard X-rays (20-40 keV) reached about 40 times the Crab Nebula flux. Becaus…

astro-ph.HE2017★ 6 cited

Observation of the Black Widow B1957+20 millisecond pulsar binary system with the MAGIC telescopes

MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +145

B1957+20 is a millisecond pulsar located in a black widow type compact binary system with a low mass stellar companion. The interaction of the pulsar wind with the companion star w…

astro-ph.HE2017★ 23 cited

Prospects for CTA observations of the young SNR RX J1713.7-3946

The CTA Consortium, :, F. Acero +381

We perform simulations for future Cherenkov Telescope Array (CTA) observations of RX~J1713.73946, a young supernova remnant (SNR) and one of the brightest sources ever discovere…

astro-ph.HE2017★ 33 cited

First Multi-wavelength Campaign on the Gamma-ray-loud Active Galaxy IC 310

M. L. Ahnen, S. Ansoldi, L. A. Antonelli +160

The extragalactic VHE gamma-ray sky is rich in blazars. These are jetted active galactic nuclei viewed at a small angle to the line-of-sight. Only a handful of objects viewed at a…

astro-ph.HE2017★ 20 cited

MAGIC detection of very high energy gamma-ray emission from the low-luminosity blazar 1ES 1741+196

MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +159

We present the first detection of the nearby (z=0.084) low-luminosity BL Lac object 1ES 1741+196 in the very high energy (VHE: E100 GeV) band. This object lies in a triplet of i…

astro-ph.HE2016★ 67 cited

Multiband variability studies and novel broadband SED modeling of Mrk 501 in 2009

M. L. Ahnen, S. Ansoldi, L. A. Antonelli +290

We present an extensive study of the BL Lac object Mrk 501 based on a data set collected during the multi-instrument campaign spanning from 2009 March 15 to 2009 August 1 which inc…

astro-ph.HE2016★ 34 cited

Observations of Sagittarius A* during the pericenter passage of the G2 object with MAGIC

M. L. Ahnen, S. Ansoldi, L. A. Antonelli +153

Context. We present the results of a multi-year monitoring campaign of the Galactic Center (GC) with the MAGIC telescopes. These observations were primarily motivated by reports th…

astro-ph.HE2016★ 39 cited

A search for spectral hysteresis and energy-dependent time lags from X-ray and TeV gamma-ray observations of Mrk 421

A. U. Abeysekara, S. Archambault, A. Archer +220

Blazars are variable emitters across all wavelengths over a wide range of timescales, from months down to minutes. It is therefore essential to observe blazars simultaneously at di…

astro-ph.HE2016★ 89 cited

Detection of very high energy gamma-ray emission from the gravitationally-lensed blazar QSO B0218+357 with the MAGIC telescopes

MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +151

Context. QSO B0218+357 is a gravitationally lensed blazar located at a redshift of 0.944. The gravitational lensing splits the emitted radiation into two components, spatially indi…

astro-ph.HE2016★ 29 cited

Super-orbital variability of LS I +61°303 at TeV energies

MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +150

The gamma-ray binary LS I +61303 is a well established source from centimeter radio up to very high energy (VHE; E100 GeV). Its broadband emission shows a periodicity…

astro-ph.HE2016★ 15 cited

Multi-Wavelength Observations of the Blazar 1ES 1011+496 in Spring 2008

The MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +158

The BL Lac object 1ES 1011+496 was discovered at Very High Energy gamma-rays by MAGIC in spring 2007. Before that the source was little studied in different wavelengths. Therefore…

astro-ph.HE2016★ 22 cited

Insights into the emission of the blazar 1ES 1011+496 through unprecedented broadband observations during 2011 and 2012

J. Aleksić, S. Ansoldi, L. A. Antonelli +161

1ES 1011+496 was discovered in very high energy (VHE, E >100 GeV) -rays with MAGIC in 2007. The absence of simultaneous data at lower energies led to a rather incomp…