17 citations · 83 across the 12 of their papers we have counts for
13 papers
Candidate X-ray Counterparts of Ultra-High-Energy Emission of the Galactic Microquasar V4641 Sgr Revealed by Einstein Probe
Yi-Heng Chi, Shao-Qiang Xi, Ping Zhou +20
Microquasars have emerged as promising PeVatron candidates capable of accelerating particles to PeV energies, with recent observations revealing ultra-high-energy (UHE) -ray emi…
FAST Discovery of Jy Radio Pulsations from PSR J2238+5903, Providing a DM Distance Anchor for the Candidate TeV Halo 1LHAASO J2238+5900
Jianli Zhang, Hui Zhu, Guanhong Lin +10
We report the first detection of radio pulsations from PSR J2238+5903, a gamma-ray pulsar spatially coincident with the extended TeV source 1LHAASO J2238+5900. Our 3000 s FAST L-ba…
Ultra-High-Energy Gamma-Ray Astronomy
Zhen Cao, Songzhan Chen, Ruoyu Liu +1
Ultra-High Energy (UHE, 0.1\,PeV) -ray Astronomy is rapidly evolving into an expanding branch of the -ray astronomy with the surprising discovery of 12 PeVatrons and the d…
Strong constraints on Lorentz violation using new -ray observations around PeV
Liang Chen, Zheng Xiong, Cong Li +2
The tiny modification of dispersion relation induced by Lorentz violation (LV) is an essential issue in quantum gravity (QG) theories, which can be magnified into significant effec…
Simulating gamma-ray production from cosmic rays interacting with the solar atmosphere in the presence of coronal magnetic fields
Zhe Li, Kenny C. Y. Ng, Songzhan Chen +2
Cosmic rays can interact with the solar atmosphere and produce a slew of secondary messengers, making the Sun a bright gamma-ray source in the sky. Detailed observations with Fermi…
Investigating the multiband nonthermal emission of the 100 TeV source eHWC J2019368 with a pulsar wind nebula scenario
Jun Fang, Lu Wen, Huan Yu +1
eHWC J2019+368 is one of the sources emitting -rays with energies higher than 100 TeV based on the recent measurement with the High Altitude Water Cherenkov Observatory (HAWC),…
Classifying the Cosmic-Ray Proton and Light Groups on the LHAASO-KM2A Experiment with the Graph Neural Network
Chao Jin, Song-zhan Chen, Hui-Hai He
Precise measurement about the cosmic-ray (CR) component knee is essential for revealing the mistery of CR's acceleration and propagation mechanism, as well as exploring the new phy…
Expectation on probing the origin of the cosmic ray knee with the LHAASO experiment
Chao Jin, Li-Qiao Yin, Song-zhan Chen +1
The cosmic-ray (CR) knee and the compositions contain abundant information for probing the CR's origin, acceleration and propagation mechanisms, as well as the frontier of the fund…
Expectation on Observation of Supernova Remnants with the LHAASO Project
Ye Liu, Zhen Cao, Songzhan Chen +7
Supernova remnants (SNRs) are believed to be the most important acceleration sites for cosmic rays (CRs) below eV in the Galaxy. High energy photons, either directly…
4.5-year simultaneous multi-wavelength observation of Mrk 421 in the ARGO-YBJ and Fermi overlap era
Songzhan Chen, Silvia Vernetto
As one of the most active blazars, Mrk421 is an excellent candidate for the study of the physical processes within the jets of AGN. Here we report on the extensive multi-wavelength…
Multi-wavelength study of the MGRO J2019+37
Chao Hou, Songzhan Chen, Qiang Yuan +3
MGRO J2019+37 within the Cygnus region is a bright and extended source revealed by Milagro at 12-35 TeV. This source is almost as bright as Crab Nebula in northern sky, while it is…
Observations of very high energy gamma-ray emission from AGNs with the ground-based EAS arrays
SongZhan CHEN
The ground-based EAS array is usually operated with a high duty cycle (> 90%) and a large field of view (~2 sr), which can continuously monitor the sky. It is essential and irrepla…
Geometry and optics calibration of WFCTA prototype telescopes using star light
L. L. Ma, Y. X. Bai, Z. Cao +17
The Large High Altitude Air Shower Observatory project is proposed to study high energy gamma ray astronomy ( 40 GeV-1 PeV ) and cosmic ray physics ( 20 TeV-1 EeV ). The wide field…