235 citations · 1.9k across the 41 of their papers we have counts for
41 papers
A lower bound on intergalactic magnetic fields from time variability of 1ES 0229+200 from MAGIC and Fermi/LAT observations
MAGIC Collaboration, V. A. Acciari, I. Agudo +206
Extended and delayed emission around distant TeV sources induced by the effects of propagation of gamma rays through the intergalactic medium can be used for the measurement of the…
Investigating the blazar TXS 0506+056 through sharp multi-wavelength eyes during 2017-2019
MAGIC Collaboration, V. A. Acciari, T. Aniello +213
The blazar TXS 0506+056 got into the spotlight of the astrophysical community in September 2017, when a high-energy neutrino detected by IceCube (IceCube-170922A) was associated at…
Observation of the gamma-ray binary HESS J0632+057 with the H.E.S.S., MAGIC, and VERITAS telescopes
C. B. Adams, W. Benbow, A. Brill +409
The results of gamma-ray observations of the binary system HESS J0632+057 collected during 450 hours over 15 years, between 2004 and 2019, are presented. Data taken with the atmosp…
First detection of VHE gamma-ray emission from TXS~1515--273, study of its X-ray variability and spectral energy distribution
MAGIC Collaboration, V. A. Acciari, S. Ansoldi +196
We report here on the first multi-wavelength (MWL) campaign on the blazar TXS 1515-273, undertaken in 2019 and extending from radio to very-high-energy gamma rays (VHE). Up until n…
Investigation of the correlation patterns and the Compton dominance variability of Mrk 421 in 2017
MAGIC Collaboration, V. A. Acciari, S. Ansoldi +284
We present a detailed characterisation and theoretical interpretation of the broadband emission of the paradigmatic TeV blazar Mrk 421, with special focus on the multi-band flux co…
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…
Observation of a sudden cessation of a very-high-energy gamma-ray flare in PKS 1510-089 with H.E.S.S. and MAGIC in May 2016
H. E. S. S. Collaboration, H. Abdalla, R. Adam +430
The flat spectrum radio quasar (FSRQ) PKS 1510-089 is known for its complex multiwavelength behavior, and is one of only a few FSRQs detected at very high energy (VHE, GeV…
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…
Detection of the Geminga pulsar with MAGIC hints at a power-law tail emission beyond 15 GeV
MAGIC Collaboration, V. A. Acciari, S. Ansoldi +190
We report the detection of pulsed gamma-ray emission from the Geminga pulsar (PSR J0633+1746) between GeV and GeV. This is the first time a middle-aged pulsar has been…
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…
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…
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…
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…
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…
The Great Markarian 421 Flare of February 2010: Multiwavelength variability and correlation studies
A. U. Abeysekara, W. Benbow, R. Bird +256
We report on variability and correlation studies using multiwavelength observations of the blazar Mrk 421 during the month of February, 2010 when an extraordinary flare reaching a…
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…
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…
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…
Study of the variable broadband emission of Markarian 501 during the most extreme Swift X-ray activity
MAGIC Collaboration, V. A. Acciari, S. Ansoldi +185
Mrk501 is a very high-energy (VHE) gamma-ray blazar located at z=0.034. During a period of two weeks in July 2014, the highest X-ray activity of Mrk501 was observed in ~14 years of…
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…
New hard-TeV extreme blazars detected with the MAGIC telescopes
MAGIC Collaboration, V. A. Acciari, S. Ansoldi +175
Extreme high-frequency peaked BL Lac objects (EHBLs) are blazars which exhibit extremely energetic synchrotron emission. They also feature non-thermal gamma-ray emission whose peak…
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.…
Testing emission models on the extreme blazar 2WHSP J073326.7+515354 detected at very high energies with the MAGIC telescopes
MAGIC Collaboration, V. A. Acciari, S. Ansoldi +173
Extreme high-energy peaked BL Lac objects (EHBLs) are an emerging class of blazars. Their typical two-hump structured spectral energy distribution (SED) peaks at higher energies wi…
Constraints on gamma-ray and neutrino emission from NGC 1068 with the MAGIC telescopes
MAGIC Collaboration, V. A. Acciari, S. Ansoldi +172
Starburst galaxies and star-forming active galactic nuclei (AGN) are among the candidate sources thought to contribute appreciably to the extragalactic gamma-ray and neutrino backg…