activity
20142023
most citedTeraelectronvolt emission from the -ray burst GRB 190114C

286 citations · 2.7k across the 62 of their papers we have counts for

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54 papers · 1 filter

astro-ph.HE2023

Chasing Gravitational Waves with the Cherenkov Telescope Array

Jarred Gershon Green, Alessandro Carosi, Lara Nava +563

The detection of gravitational waves from a binary neutron star merger by Advanced LIGO and Advanced Virgo (GW170817), along with the discovery of the electromagnetic counterparts…

astro-ph.HE2023

Variability studies of active galactic nuclei from the long-term monitoring program with the Cherenkov Telescope Array

Guillaume Grolleron, Josefa Becerra González, Jonathan Biteau +13

Blazars are active galactic nuclei (AGN) with a relativistic jet oriented toward the observer. This jet is composed of accelerated particles which can display emission over the ent…

astro-ph.HE2023★ 22 cited

Sensitivity of the Cherenkov Telescope Array to spectral signatures of hadronic PeVatrons with application to Galactic Supernova Remnants

The Cherenkov Telescope Array Consortium, F. Acero, A. Acharyya +356

The local Cosmic Ray (CR) energy spectrum exhibits a spectral softening at energies around 3~PeV. Sources which are capable of accelerating hadrons to such energies are called hadr…

astro-ph.HE2021

Origin of the gamma-ray emission from supernova remnant HB9

Tülün Ergin, Lab Saha, Hidetoshi Sano +4

HB9 (G160.9+2.6) is a mixed-morphology Galactic supernova remnant (SNR) at a distance of 0.6 kpc. Previous analyses revealed recombining plasma emission in X-rays and an expa…

astro-ph.HE2021★ 48 cited

Combined searches for dark matter in dwarf spheroidal galaxies observed with the MAGIC telescopes, including new data from Coma Berenices and Draco

MAGIC Collaboration, V. A. Acciari, S. Ansoldi +191

Milky Way dwarf spheroidal galaxies (dSphs) are among the best candidates to search for signals of dark matter annihilation with Imaging Atmospheric Cherenkov Telescopes, given the…

astro-ph.HE2021★ 24 cited

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…

astro-ph.HE2021★ 5 cited

Search for Very High-Energy Emission from the millisecond pulsar PSR J0218+4232

V. A. Acciari, S. Ansoldi, L. A. Antonelli +198

PSR J0218+4232 is one of the most energetic millisecond pulsars known and has long been considered as one of the best candidates for very high-energy (VHE; >100 GeV) gamma-ray emis…

astro-ph.HE2021★ 8 cited

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…

astro-ph.HE2021★ 49 cited

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…

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★ 31 cited

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…

astro-ph.HE2020★ 3 cited

Probing the star formation origin of gamma rays from 3FHL J1907.0+0713

T. Ergin, L. Saha, P. Bhattacharjee +5

Star-forming (SF) regions embedded inside giant molecular clouds (GMCs) are potential contributors to Galactic gamma rays. The gamma-ray source 3FHL J1907.0+0713 is detected with a…

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★ 49 cited

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…

astro-ph.HE2020★ 77 cited

Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation

The Cherenkov Telescope Array Consortium, :, H. Abdalla +496

The Cherenkov Telescope Array (CTA), the new-generation ground-based observatory for -ray astronomy, provides unique capabilities to address significant open questions in astrop…

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

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…

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…