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astro-ph.HE2024

LHAASO detection of very-high-energy gamma-ray emission surrounding PSR J0248+6021

Zhen Cao, F. Aharonian, Q. An +276

We report the detection of an extended very-high-energy (VHE) gamma-ray source coincident with the location of middle-aged (62.4~\rm kyr) pulsar PSR J0248+6021, by using the LHAASO…

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.HE2024

Discovery of Very-high-energy Gamma-ray Emissions from the Low Luminosity AGN NGC 4278 by LHAASO

Zhen Cao, F. Aharonian, Q. An +276

The first source catalog of Large High Altitude Air Shower Observatory reported the detection of a very-high-energy gamma ray source, 1LHAASO J1219+2915. In this paper a further de…

astro-ph.HE2024

Soft X-ray prompt emission from a high-redshift gamma-ray burst EP240315a

Y. Liu, H. Sun, D. Xu +191

Long gamma-ray bursts (GRBs) are believed to originate from core collapse of massive stars. High-redshift GRBs can probe the star formation and reionization history of the early un…

astro-ph.IM2024

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.HE2024

Measurements of All-Particle Energy Spectrum and Mean Logarithmic Mass of Cosmic Rays from 0.3 to 30 PeV with LHAASO-KM2A

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

We present the measurements of all-particle energy spectrum and mean logarithmic mass of cosmic rays in the energy range of 0.3-30 PeV using data collected from LHAASO-KM2A between…