88 citations · 255 across the 13 of their papers we have counts for
14 papers
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…
Optimization of performance of the KM2A full array using the Crab Nebula
LHAASO collaboration
The full array of the Large High Altitude Air Shower Observatory (LHAASO) has been in operation since July 2021. For its kilometer-square array (KM2A), we have optimized the select…
Flux Variations of Cosmic Ray Air Showers Detected by LHAASO-KM2A During a Thunderstorm on 10 June 2021
LHAASO Collaboration, F. Aharonian, Q. An +268
The Large High Altitude Air Shower Observatory (LHAASO) has three sub-arrays, KM2A, WCDA and WFCTA. The flux variations of cosmic ray air showers were studied by analyzing the KM2A…
A possible blazar spectral irregularity case caused by photon--axionlike-particle oscillations
Jianeng Zhou, Zhongxiang Wang, Feng Huang +1
We report detection of a line-like feature in the -ray spectrum of the blazar B0516621, for which the data obtained with the Large Area Telescope onboard {\it Fermi Gamma-Ray…
Searching for Quasi-Periodic Modulations in -ray Active Galactic Nuclei
Pengfei Zhang, Dahai Yan, Jianeng Zhou +2
We perform a systematic search of quasi-periodic variabilities in -ray active galactic nuclei (AGNs) in the third \emph{Fermi} Large Area Telescope source catalog (3FGL). We emp…
Property Studies of "Loner" Flares of Gamma-Ray Blazars
Gege Wang, Zhongxiang Wang, Liang Chen +2
We search through -ray data obtained with the Large Area Telescope (LAT) onboard the Fermi Gamma-Ray Space Telescope and find 24 blazars (or candidates) that have a single clear…
Detection of Gamma-Rays from the Protostellar Jet in the HH 80-81 System
Dahai Yan, Jianeng Zhou, Pengfei Zhang
Considering that the existence of relativistic particles in the protostellar jet has been confirmed by the detection of linearly polarized radio emission from the HH 80-81 jet, we…
A 34.5 day quasi-periodic oscillation in gamma-ray emission from the blazar PKS 2247-131
Jianeng Zhou, Zhongxiang Wang, Liang Chen +5
Since 2016 October, the active galaxy PKS 2247-131 has undergone a gamma-ray outburst, which we studied using data obtained with the Fermi Gamma-ray Space Telescope. The emission a…
Impact of Plasma Instability on Constraint of the Intergalactic Magnetic Field
Dahai Yan, Jianeng Zhou, Pengfei Zhang +2
A relativistic electron-positron pair beam can be produced in the interaction of TeV photons from a blazar with the extragalactic background light (EBL). The relativistic …
A gamma-ray periodic modulation in Globular Cluster 47 Tucanae
Peng-Fei Zhang, Jia-Neng Zhou, Da-Hai Yan +4
The Globular Cluster 47 Tucanae was firstly detected in gamma-rays by the Large Area Telescope (LAT) onboard the \emph{Fermi} Gamma-ray Space Telescope, and the gamma-ray emission…
Testing relativistic boost as the cause of gamma-ray quasi-periodic oscillation in a blazar
Dahai Yan, Jianeng Zhou, Pengfei Zhang +2
The mechanism for producing gamma-ray quasi-periodic oscillation (QPO) in blazar is unknown. One possibility is the geometric model, in which without the need for intrinsic quasi-p…
A -ray Quasi-Periodic modulation in the Blazar PKS 0301243?
Peng-Fei Zhang, Da-Hai Yan, Jia-Neng Zhou +3
We report a nominally high-confidence -ray quasi-periodic modulation in the blazar PKS 0301243. For this target, we analyze its \emph{Fermi}-LAT Pass 8 data covering from 200…
High energy properties of the flat spectrum radio quasar 4C 50.11
Jianeng Zhou, V. Jithesh, Chen Liang +1
We investigate the -ray and X-ray properties of the flat spectrum radio quasar (FSRQ) \4c50 at redshift . The {\it Fermi} Large Area Telescope (LAT) data indicate that…
Long-term Optical Observations of the Be/X-ray Binary X Per
Hui Li, Jingzhi Yan, Jianeng Zhou +1
We present the optical spectroscopic observations of X Per from 1999 to 2013 with the 2.16m telescope at Xinglong Station and the 2.4m telescope at Lijiang station, National Astron…