8 papers
Fermi-LAT Detection of a Gamma-ray Excess toward the Radio-quiet Narrow-line Seyfert 1 Galaxy 1H 1934-063
Yangji Li, Jinming Bai, Xiong Jiang +1
We report a -ray excess toward the radio-quiet narrow-line Seyfert 1 galaxy 1H 1934-063 using data collected by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space…
The First GeV Gamma-Ray Flares from the CSO-like Source 4C 76.03
Xiong Jiang, Hai Lei, Hao-Yi Huang +3
We report the first detection of GeV gamma-ray flaring activity from the compact symmetric object (CSO)-like source 4C 76.03, based on 17 years of Fermi-LAT observations. Its long-…
First Detection of -Ray Emission from the Compact Symmetric Object JVAS J1311+1658
Xiong Jiang, Yang-Ji Li, Hai Lei +1
We report the first detection of -ray emission from the young radio galaxy JVAS~J1311+1658, classified as a compact symmetric object (CSO). This detection is characterized by a…
The -ray-emitting blazar B3 1239+376 at = 3.82 identified in a multi-wavelength context
Wei Zhang, Neng-Hui Liao, Hao-Yi Huang +6
Among thousands of extragalactic -ray emitters, only a handful of distant ( 3) sources are detected. Yet, they are crucial probes shedding light on the cosmic evolution of…
Leptohadronic Multimessenger Modeling of Two High-redshift (z 1) Neutrino Emission Blazar Candidates
Xiong Jiang, Neng-Hui Liao, Xue Rui +2
The blazars are one of the leading candidate sources of high-energy neutrinos. Recently, two blazars have been found to be temporally and spatially correlated with some IceCube hig…
A nearby FR I type radio galaxy 3C 120 as a possible PeV neutrino emitter
Rong-Qing Chen, Neng-Hui Liao, Xiong Jiang +1
Although connections between flaring blazars and some IceCube neutrinos have been established, the dominant sources for the bulk extragalactic neutrino emissions are still unclear…
A -Ray Emitting Blazar at Redshift 3.64: Fermi-LAT and OVRO Observations of PKS 0201+113
Hai Lei, Ying-Kang Zhang, Xiong Jiang +5
High-redshift () -ray blazars are rare, but they are crucial for our understanding of jet evolution, -ray production and propagation, and the growth of supermassive bla…
Awakening of A Blazar at Redshift 2.7 Temporally Coincident with Arrival of Cospatial Neutrino Event IceCube-201221A
Xiong Jiang, Neng-Hui Liao, Yi-Bo Wang +3
We report on multiwavelength studies of a blazar NVSS J171822+423948, which is identified as the low-energy counterpart of 4FGL J1718.5+4237, the unique -ray source known to be…