activity
20232026
most citedAn Ultrahigh-energy -ray Bubble Powered by a Super PeVatron

85 citations · 188 across the 11 of their papers we have counts for

collaborators

13 papers

astro-ph.HE2026★ 2 cited

Gamma-ray signature of superluminous supernovae: Fermi-LAT GeV detection of SN 2017egm and evidence of a central engine

F. Acero, A. Acharyya, A. Adelfio +116

Superluminous supernovae (SLSNe) are a rare class of transients with peak luminosities 10-100 times greater than those of standard core-collapse supernovae (SNe). The mechanisms po…

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

Puzzling Variation of Gamma Rays from the Sun over the Solar Cycle Revealed with Fermi-LAT

A. Acharyya, A. Adelfio, M. Ajello +100

The steady-state gamma-ray emission from the Sun is thought to consist of two emission components due to interactions with Galactic cosmic rays: (1) a hadronic disk component, and…

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

Search for Extended GeV Sources in the Inner Galactic Plane

S. Abdollahi, F. Acero, A. Acharyya +108

The recent detection of extended -ray emission around middle-aged pulsars is interpreted as inverse-Compton scattering of ambient photons by electron-positron pairs escaping the…

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.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★ 21 cited

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★ 52 cited

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…

astro-ph.HE2023

Does or did the supernova remnant Cassiopeia A operate as a PeVatron?

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

For decades, supernova remnants (SNRs) have been considered the prime sources of Galactic Cosmic rays (CRs). But whether SNRs can accelerate CR protons to PeV energies and thus dom…

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…