activity
20022026
most citedThe Knee of the Cosmic Hydrogen and Helium Spectrum below 1 PeV Measured by ARGO-YBJ and a Cherenkov Telescope of LHAASO

127 citations · 2.2k across the 56 of their papers we have counts for

collaborators

57 papers

astro-ph.HE2026

LHAASO-WCDA observed a 5 days TeV-delayed flaring event in blazar 1ES 1959+650

Zhen Cao, F. Aharonian, Y. X. Bai +339

We report a day-scale hard lag between GeV and TeV -ray emission from the HBL 1ES~1959+650 in early 2024. Since the LHAASO-WCDA real-time monitoring system began operation in la…

astro-ph.HE2026

Extreme PeV accelerator associated with GRS 1915+105

Zhen Cao, F. Aharonian, Y. X. Bai +322

Microquasars, binary systems featuring relativistic jets, have emerged as sources for particle acceleration beyond PeV energies. We present a study of the broadband -ray emissio…

astro-ph.HE2025

LHAASO Detection of Ultra-High-Energy Gamma-Ray Emission toward the Giant Molecular Clouds

Zhen Cao, F. Aharonian, Y. X. Bai +310

The -ray from Giant molecular clouds (GMCs) is regarded as the most ideal tool to perform in-situ measurement of cosmic ray (CR) density and spectra in our Galaxy. We report the…

astro-ph.HE2025

Energy calibration of LHAASO-KM2A using the cosmic ray Moon shadow

Zhen Cao, F. Aharonian, Y. X. Bai +323

We present a precise measurement of the westward, rigidity-dependent shift of the Moon's shadow using three and a half years of cosmic-ray data collected by the Kilometer Square Ar…

astro-ph.HE2025

All-sky search for individual Primordial Black Hole bursts with LHAASO

Zhen Cao, F. Aharonian, Y. X. Bai +311

Primordial Black Holes~(PBHs) are hypothetical black holes with a wide range of masses that formed in the early universe. As a result, they may play an important cosmological role…

astro-ph.HE2024★ 8 cited

Evidence for particle acceleration approaching PeV energies in the W51 complex

The LHAASO Collaboration, Zhen Cao, F. Aharonian +284

The -ray emission from the W51 complex is widely acknowledged to be attributed to the interaction between the cosmic rays (CRs) accelerated by the shock of supernova remnant (SN…

astro-ph.IM2024

Data quality control system and long-term performance monitor of the LHAASO-KM2A

Zhen Cao, F. Aharonian, Axikegu +282

The KM2A is the largest sub-array of the Large High Altitude Air Shower Observatory (LHAASO). It consists of 5216 electromagnetic particle detectors (EDs) and 1188 muon detectors (…

astro-ph.IM2024★ 13 cited

LHAASO-KM2A detector simulation using Geant4

Zhen Cao, F. Aharonian, Q. An +275

KM2A is one of the main sub-arrays of LHAASO, working on gamma ray astronomy and cosmic ray physics at energies above 10 TeV. Detector simulation is the important foundation for es…

astro-ph.HE2023★ 85 cited

An Ultrahigh-energy -ray Bubble Powered by a Super PeVatron

The LHAASO Collaboration, Z. Cao, F. Aharonian +277

We report the detection of a -ray bubble spanning at least 100 in ultra high energy (UHE) up to a few PeV in the direction of the star-forming region Cygnus X, implyi…

astro-ph.IM2017★ 6 cited

New prototype scintillator detector for the Tibet AS Experiment

Y. Zhang, Q. -B. Gou, H. Cai +21

The hybrid Tibet AS array was successfully constructed in 2014. It has 4500 m underground water Cherenkov pools used as the muon detector (MD) and 789 scintillator detectors…

astro-ph.EP2017★ 27 cited

Observation of the thunderstorm-related ground cosmic ray flux variations by ARGO-YBJ

B. Bartoli, P. Bernardini, X. J. Bi +70

A correlation between the secondary cosmic ray flux and the near-earth electric field intensity, measured during thunderstorms, has been found by analyzing the data of the ARGO-YBJ…

astro-ph.HE2017★ 11 cited

EAS age determination from the study of the lateral distribution of charged particles near the shower axis with the ARGO-YBJ experiment

YBJ Collaboration, B. Bartoli, P. Bernardini +69

The ARGO-YBJ experiment, a full coverage extensive air shower (EAS) detector located at high altitude (4300 m a.s.l.) in Tibet, China, has smoothly taken data, with very high stabi…

cond-mat.soft2016★ 1 cited

Cylindrically confined assembly of diblock copolymer under oscillatory shear flow

Y. -Q. Guo, J. -X. Pan, J. -J. Zhang +3

Manipulating the self-assembly nanostructures with combined different control measures is emerging as a promising route for numerous applications to generate templates and scaffold…

astro-ph.IM2015★ 40 cited

Detection of thermal neutrons with the PRISMA-YBJ array in Extensive Air Showers selected by the ARGO-YBJ experiment

B. Bartoli, P. Bernardini, X. J. Bi +79

We report on a measurement of thermal neutrons, generated by the hadronic component of extensive air showers (EAS), by means of a small array of EN-detectors developed for the PRIS…

astro-ph.HE2015★ 63 cited

4.5 years multi-wavelength observations of Mrk 421 during the ARGO-YBJ and Fermi common operation time

B. Bartoli, P. Bernardini, X. J. Bi +68

We report on the extensive multi-wavelength observations of the blazar Markarian 421 (Mrk 421) covering radio to gamma-rays, during the 4.5 year period of ARGO-YBJ and Fermi common…

astro-ph.IM2015★ 3 cited

Study on a prototype of the large dimensional refractive lens for the future large field-of-view IACT

T. L. Chen, Z. Wang, Q. Gao +15

In gamma ray astronomy, the energy range from sub-100GeV to TeV is crucial due to where there is a gap between space experiments and ground-based ones. In addition, observations in…

astro-ph.IM2015★ 89 cited

Study of the diffuse gamma-ray emission from the Galactic plane with ARGO-YBJ

B. Bartoli, P. Bernardini, X. J. Bi +78

The events recorded by ARGO-YBJ in more than five years of data collection have been analyzed to determine the diffuse gamma-ray emission in the Galactic plane at Galactic longitud…

hep-ex2015★ 41 cited

The cosmic ray proton plus helium energy spectrum measured by the ARGO-YBJ experiment in the energy range 3-300 TeV

YBJ Collaboration, B. Bartoli, P. Bernardini +70

The ARGO-YBJ experiment is a full-coverage air shower detector located at the Yangbajing Cosmic Ray Observatory (Tibet, People's Republic of China, 4300 m a.s.l.). The high altitud…

astro-ph.HE2015★ 127 cited

The Knee of the Cosmic Hydrogen and Helium Spectrum below 1 PeV Measured by ARGO-YBJ and a Cherenkov Telescope of LHAASO

B. Bartoli, P. Bernardini, X. J. Bi +93

The measurement of cosmic ray energy spectra, in particular for individual species, is an essential approach in finding their origin. Locating the "knees" of the spectra is an impo…

astro-ph.IM2014★ 76 cited

The High Energy cosmic-Radiation Detection (HERD) Facility onboard China's Future Space Station

S. N. Zhang, the HERD collaboration

The High Energy cosmic-Radiation Detection (HERD) facility is one of several space astronomy payloads of the cosmic lighthouse program onboard China's Space Station, which is plann…

astro-ph.HE2014★ 99 cited

Identification of the TeV Gamma-ray Source ARGO J2031+4157 with the Cygnus Cocoon

YBJ Collaboration, B. Bartoli, P. Bernardini +80

The extended TeV gamma-ray source ARGO J2031+4157 (or MGRO J2031+41) is positionally consistent with the Cygnus Cocoon discovered by -LAT at GeV energies in the Cygnus super…

astro-ph.HE2013★ 84 cited

TeV gamma-ray survey of the Northern sky using the ARGO-YBJ detector

YBJ Collaboration, B. Bartoli, P. Bernardini +94

The ARGO-YBJ detector is an extensive air shower array that has been used to monitor the northern -ray sky at energies above 0.3 TeV from 2007 November to 2013 January. In this…

astro-ph.HE2013

Medium scale anisotropy in the TeV cosmic ray flux observed by ARGO-YBJ

YBJ Collaboration

Measuring the anisotropy of the arrival direction distribution of cosmic rays provides important information on the propagation mechanisms and the identification of their sources.…

astro-ph.SR2013★ 51 cited

Probe of the Solar Magnetic Field Using the "Cosmic-Ray Shadow" of the Sun

M. Amenomori, X. J. Bi, D. Chen +77

We report on a clear solar-cycle variation of the Sun's shadow in the 10 TeV cosmic-ray flux observed by the Tibet air shower array during a full solar cycle from 1996 to 2009. In…