1 citations · 2 across the 11 of their papers we have counts for
11 papers
Spectral Variations of -rays in Mrk 421
Rui-Qi Huang, Xin-Ke Hu, Yu-Wei Yu +2
We present a comprehensive analysis of the 17-year Fermi-LAT observational data of Mrk 421 to investigate the spectral variations in the -ray bands. The light curve of the sourc…
Properties and Possible Physical Origins of -ray Emission in Extreme Synchrotron Blazars
Ji-Shun Lian, Jia-Xuan Li, Ze-Rui Wang +3
Extreme synchrotron blazars, characterized by a first peak in their broadband spectral energy distributions (SEDs) at frequencies exceeding Hz, often exhibit a second pea…
Hard X-ray view of two -ray detected low-luminosity active galactic nuclei: NGC 315 and NGC 4261
Yuwei Yu, Jin Zhang
Aims. The accretion disk of low-luminosity active galactic nuclei (LLAGNs) is a radiatively inefficient accretion flow (RIAF). Our goal is to find evidence of RIAF radiation from L…
Hadronic Processes in Advection-Dominated Accretion Flow as the Origin of TeV Excesses in BL Lac Objects
Ji-Shun Lian, Ze-Rui Wang, Jin Zhang
The spectral energy distributions (SEDs) of certain BL Lac objects (BL Lacs) exhibit an additional hard -ray component in the TeV energy range that surpasses the predictions of…
X-ray Emission Properties of a Compact Symmetric Object Sample
Ying-Ying Gan, Su Yao, Tan-Zheng Wu +2
We present a comprehensive analysis of the X-ray observations obtained from \xmm\, and \chandra\, for a sample of bona-fide Compact Symmetric Objects (CSOs) to investigate their X-…
Unraveling the hybrid origins of the X-ray non-thermal emission from IGR J17091-3624
Zikun Lin, Yanan Wang, Santiago del Palacio +8
We present a comprehensive study based on multi-wavelength observations from the NuSTAR, NICER, Swift, Fermi, NEOWISE, and ATCA telescopes during the 2022 outburst of the black hol…
Two-Component gamma-ray Emission Spectrum and X-Ray Polarization of the Radio Galaxy Pictor A
Jia-Xuan Li, Xin-Ke Hu, Ji-Shun Lian +6
Pictor A is a -ray emitting radio galaxy and has a bright hotspot called WHS, located 4 arcmin away from the nucleus. In this work, we present an analysis of its 16-year F…
Origin of the Very High Energy γ-rays in the Low-luminosity Active Galactic Nucleus NGC 4278
Ji-Shun Lian, Jia-Xuan Li, Xin-Ke Hu +4
NGC 4278, a Low-luminosity active galactic nucleus (AGN), is generally classified as a low-ionization nuclear emission line region (LINER). Recently, it has been reported to be ass…
Study of γ-ray Emission from a Compact Radio Galaxy with the Fermi Large Area Telescope
Tan-Zheng Wu, Yu-Wei Yu, Ying-Ying Gan +2
The radio galaxy PKS 1007+142 is classified as a compact steep-spectrum source (CSS) and belongs to the class of young Active Galactic Nuclei (AGNs). In this paper, we investigate…
Fermi Large Area Telescope Detection of Gamma-Rays from NGC 6251 Radio Lobe
Yu-Wei Yu, Hai-Ming Zhang, Ying-Ying Gan +3
We report on the detection of extended -ray emission from lobes in the radio galaxy NGC 6251 using observation data of Fermi Large Area Telescope (Fermi-LAT). The maximum likeli…
Lobe-dominated gamma-ray Emission of Compact Symmetric Objects
Ying-Ying Gan, Hai-Ming Zhang, Xing Yang +2
The -ray emitting compact symmetric objects (CSOs) PKS 1718--649, NGC 3894, and TXS 0128+554 are lobe-dominated in the radio emission. In order to investigate their -ray radi…