activity
20202026
most citedThe First LHAASO Catalog of Gamma-Ray Sources

247 citations · 1.7k across the 50 of their papers we have counts for

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44 papers · 1 filter

astro-ph.HE2026

Simulation Study of Reconstruction of Cosmic Ray Extensive Air Shower with Thermal Neutron Detected by ENDA

Fan-Ping Li, Xin-Hua Ma, Hu Liu +25

In the investigation of the "knee" region within the cosmic ray energy spectrum, extensive air shower (EAS) reconstruction by using different EAS secondary particles are of paramou…

astro-ph.HE2026

The Extended Ultrahigh-energy Gamma-Ray Emission in the Vicinity of PSR J2238+5903

Zhen Cao, F. Aharonian, Y. X. Bai +324

We present a comprehensive analysis of the recently discovered TeV gamma-ray source, LHAASO J2238+5900. Based on data collected from the LHAASO, our fitting results suggest that th…

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.HE2026

LHAASO observation of Mrk 421 during 2021 March - 2024 March: a comprehensive VHE catalog of multi-timescale outbursts and its time average behavior

The LHAASO Collaboration, Zhen Cao, F. Aharonian +321

The Large High Altitude Air Shower Observatory (LHAASO) monitors sources within its field of view for up to 7 hours daily, achieving a duty cycle exceeding 98% and an annual point-…

astro-ph.HE2026★ 1 cited

Transient Large-Scale Anisotropy in TeV Cosmic Rays due to an Interplanetary Coronal Mass Ejection

Zhen Cao, F. Aharonian, Y. X. Bai +309

Large- or medium-scale cosmic ray anisotropy at TeV energies has not previously been confirmed to vary with time. Transient anisotropy changes have been observed below 150 GeV, esp…

astro-ph.HE2025

Energy-Dependent Shifts of Medium-Scale Anisotropies in Very-High-Energy Cosmic Rays Observed by LHAASO-KM2A

The LHAASO collabration, Zhen Cao, F. Aharonian +310

Small deviations from isotropy in the arrival directions of Galactic cosmic rays serve as a unique probe of the local magnetic environment. In this Letter, we report observations o…

astro-ph.HE2025

Cygnus X-3: A variable petaelectronvolt gamma-ray source

The LHAASO Collaboration, Zhen Cao, F. Aharonian +324

We report the discovery of variable -rays up to petaelectronvolt from Cygnus X-3, an iconic X-ray binary. The -ray signal was detected with a statistical significance of appr…

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

A Giant Peanut-shaped Ultra-High-Energy Gamma-Ray Emitter Off the Galactic Plane

Zhen Cao, Felix Aharonian, Yunxiang Bai +312

Ultra-high-energy (UHE), exceeding 100 TeV (10^12 electronvolts), γ-rays manifests extreme particle acceleration in astrophysical sources. Recent observations by γ-ray telescopes,…

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.HE2025★ 14 cited

Precise measurements of the cosmic ray proton energy spectrum in the "knee'' region

The LHAASO Collaboration, Zhen Cao, F. Aharonian +310

We report the high-purity identification of cosmic-ray (CR) protons and a precise measurement of their energy spectrum from 0.15 to 12 PeV using the Large High Altitude Air Shower…

astro-ph.HE2025★ 2 cited

Study of Ultra-High-Energy Gamma-Ray Source 1LHAASO J0056+6346u and Its Possible Origins

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

We report a dedicated study of the newly discovered extended UHE -ray source 1LHAASO J0056+6346u. Analyzing 979 days of LHAASO-WCDA data and 1389 days of LHAASO-KM2A data, we ob…

astro-ph.HE2025★ 3 cited

Ultra-high-energy -ray emission associated with the tail of a bow-shock pulsar wind nebula

Zhen Cao, F. Aharonian, Y. X. Bai +292

In this study, we present a comprehensive analysis of an unidentified point-like ultra-high-energy (UHE) -ray source, designated as 1LHAASO J1740+0948u, situated in the vicinity…

astro-ph.HE2025

Broadband -ray spectrum of supernova remnant Cassiopeia A

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

The core-collapse supernova remnant (SNR) Cassiopeia A (Cas A) is one of the brightest galactic radio sources with an angular radius of 2.5 $\arcmin$. Although no extension…

astro-ph.HE2025

Constraining the Cosmic-ray Energy Based on Observations of Nearby Galaxy Clusters by LHAASO

The LHAASO Collaboration, Zhen Cao, F. Aharonian +323

Galaxy clusters act as reservoirs of high-energy cosmic rays (CRs). As CRs propagate through the intracluster medium, they generate diffuse -rays detectable by arrays such as LH…

astro-ph.HE2024

An Enigmatic PeVatron in an Area around HII Region G35.60.5

The LHAASO Collaboration, Zhen Cao, F. Aharonian +294

Identifying Galactic PeVatrons (PeV particle accelerators) from the ultra-high-energy (UHE, >100 TeV) -ray sources plays a crucial role in revealing the origin of Galactic cosmi…

astro-ph.HE2024★ 27 cited

Measurement of Very-high-energy Diffuse Gamma-ray Emissions from the Galactic Plane with LHAASO-WCDA

The LHAASO Collaboration, Zhen Cao, F. Aharonian +312

The diffuse Galactic gamma-ray emission is a very important tool used to study the propagation and interaction of cosmic rays in the Milky Way. In this work, we report the measurem…

astro-ph.HE2024

Detection of two TeV gamma-ray outbursts from NGC 1275 by LHAASO

Zhen Cao, F. Aharonian, Axikegu +275

The Water Cherenkov Detector Array (WCDA) is one of the components of Large High Altitude Air Shower Observatory (LHAASO) and can monitor any sources over two-thirds of the sky for…

astro-ph.HE2024★ 12 cited

Detection of very high-energy gamma-ray emission from the radio galaxy M87 with LHAASO

Zhen Cao, F. Aharonian, Axikegu +292

The nearby radio galaxy M87 is a very-high-energy (VHE) gamma-ray emitter established by observations with ground-based gamma-ray detectors. Here we report the long-term monitoring…

astro-ph.HE2024★ 9 cited

Ultrahigh-Energy Gamma-ray Emission Associated with Black Hole-Jet Systems

The LHAASO Collaboration, Zhen Cao, Felix Aharonian +315

Black holes (BH), one of the most intriguing objects in the universe, can manifest themselves through electromagnetic radiation initiated by the accretion flow. Some stellar-mass B…

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.HE2024

Deep view of Composite SNR CTA1 with LHAASO in -rays up to 300 TeV

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

The ultra-high-energy (UHE) gamma-ray source 1LHAASO J0007+7303u is positionally associated with the composite SNR CTA1 that is located at high Galactic Latitude $b\approx 10.5^\ci…

astro-ph.HE2024★ 15 cited

Observation of the -ray Emission from W43 with LHAASO

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

In this paper, we report the detection of the very-high-energy (VHE, ) and ultra-high-energy (UHE, ) -ray emissions from th…