activity
20192026
most citedTeraelectronvolt emission from the -ray burst GRB 190114C

286 citations · 1.6k across the 32 of their papers we have counts for

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Showing 2020Show all

14 papers · 1 filter

astro-ph.HE2020★ 30 cited

VHE gamma-ray detection of FSRQ QSO B1420+326 and modeling of its enhanced broadband state in 2020

V. A. Acciari, S. Ansoldi, L. A. Antonelli +230

Context. QSO B1420+326 is a blazar classified as a Flat Spectrum Radio Quasar (FSRQ). In the beginning of 2020 it underwent an enhanced flux state. An extensive multiwavelength cam…

astro-ph.HE2020★ 58 cited

MAGIC observations of the nearby short gamma-ray burst GRB 160821B

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +188

The coincident detection of GW170817 in gravitational waves and electromagnetic radiation spanning the radio to MeV gamma-ray bands provided the first direct evidence that short ga…

astro-ph.HE2020★ 28 cited

An intermittent extreme BL Lac: MWL study of 1ES 2344+514 in an enhanced state

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +215

Extreme High-frequency BL~Lacs (EHBL) feature their synchrotron peak of the broadband spectral energy distribution (SED) at 10\,Hz. The BL~Lac object 1ES~23…

astro-ph.HE2020★ 9 cited

Studying the nature of the unidentified gamma-ray source HESS J1841-055 with the MAGIC telescopes

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +184

We investigate the physical nature and origin of the gamma-ray emission from the extended source HESS J1841-055 observed at TeV and GeV energies. We observed HESS J1841-055 at TeV…

astro-ph.HE2020★ 226 cited

Observation of inverse Compton emission from a long -ray burst

V. A. Acciari, S. Ansoldi, L. A. Antonelli +301

Long-duration gamma-ray bursts (GRBs) originate from ultra-relativistic jets launched from the collapsing cores of dying massive stars. They are characterised by an initial phase o…

astro-ph.HE2020★ 286 cited

Teraelectronvolt emission from the -ray burst GRB 190114C

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +177

Gamma-ray bursts (GRBs) of the long-duration class are the most luminous sources of electromagnetic radiation known in the Universe. They are generated by outflows of plasma ejecte…

astro-ph.HE2020★ 33 cited

Testing two-component models on very-high-energy gamma-ray emitting BL Lac objects

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +201

Context. It has become evident that one-zone synchrotron self-Compton models are not always adequate for very-high-energy (VHE) gamma-ray emitting blazars. While two-component mode…

astro-ph.HE2020★ 57 cited

MAGIC observations of the diffuse -ray emission in the vicinity of the Galactic Centre

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +173

Aims: rays can be used as a tracer in the search of sources of Galactic cosmic rays (CRs). We present deep observations of the Galactic Centre (GC) region with the MAGIC telesc…

astro-ph.HE2020★ 19 cited

A search for dark matter in Triangulum II with the MAGIC telescopes

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +172

We present the first results from very-high-energy observations of the dwarf spheroidal satellite candidate Triangulum II with the MAGIC telescopes from 62.4 hours of good-quality…

astro-ph.HE2020★ 46 cited

Broadband characterisation of the very intense TeV flares of the blazar 1ES 1959+650 in 2016

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +164

1ES 1959+650 is a bright TeV high-frequency-peaked BL Lac object exhibiting interesting features like "orphan" TeV flares and a broad emission in the high-energy regime, that are d…

astro-ph.HE2020★ 59 cited

MAGIC very large zenith angle observations of the Crab Nebula up to 100 TeV

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +169

Aims: We aim to measure the Crab Nebula gamma-ray spectral energy distribution in the ~100 TeV energy domain and test the validity of existing leptonic emission models at these hig…

astro-ph.HE2020★ 50 cited

Unravelling the complex behavior of Mrk 421 with simultaneous X-ray and VHE observations during an extreme flaring activity in April 2013

MAGIC collaboration, V. A. Acciari, S. Ansoldi +237

We report on a multi-band variability and correlation study of the TeV blazar Mrk 421 during an exceptional flaring activity observed from 2013 April 11 to 2013 April 19. The study…

astro-ph.HE2020★ 99 cited

Bounds on Lorentz invariance violation from MAGIC observation of GRB 190114C

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +181

On January 14, 2019, the Major Atmospheric Gamma Imaging Cherenkov telescopes detected GRB 190114C above 0.2 TeV, recording the most energetic photons ever observed from a gamma-ra…

astro-ph.HE2020★ 50 cited

Monitoring of the radio galaxy M87 during a low emission state from 2012 to 2015 with MAGIC

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +188

M87 is one of the closest (z=0.00436) extragalactic sources emitting at very-high-energies (VHE, E > 100 GeV). The aim of this work is to locate the region of the VHE gamma-ray emi…