67 citations · 397 across the 25 of their papers we have counts for
22 papers · 1 filter
Could the interaction of jet and SN ejecta be the cause of X-ray knots observed in a radio galaxy?
Jia-Chun He, Xiao-Na Sun, Hao-Qiang Zhang +4
We investigate the interaction between relativistic jets and supernova (SN) ejecta as a potential origin of X-ray knots in radio galaxies, employing knot A in M 87 as a test case.…
Revisiting the Geminga halo at GeV energies with Fermi-LAT data
Yu Meng, Yun-Feng Liang, Ben-Yang Zhu +2
Nearby pulsars within are considered to be possible sources of 10-500 GeV cosmic-ray positron excess measured by PAMELA and AMS-02. A TeV halo around Geminga is…
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,…
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…
Extended GeV -ray emission around the star forming region of the W3 complex
Qihang Wu, Xiaona Sun, Ruizhi Yang +3
We analyze the GeV -ray emission from the W3 complex using about 14 years of Pass 8 data recorded by the Large Area Telescope (\textit{Fermi}-LAT). We resolve the $γ…
GeV gamma-ray emission in the field of young massive star cluster RCW 38
Ting-Ting Ge, Xiao-Na Sun, Rui-Zhi Yang +3
We report the detection of gamma-ray emission by the Fermi Large Area Telescope (Fermi-LAT) towards the young massive star cluster RCW 38 in the 1-500 GeV photon energy range. We f…
Studying X-ray spectra from large-scale jets of FR II radio galaxies: application of shear particle acceleration
Jia-Chun He, Xiao-Na Sun, Jie-Shuang Wang +3
Shear particle acceleration is a promising candidate for the origin of extended high-energy emission in extra-galactic jets. In this paper, we explore the applicability of a shear…
Diffuse -ray emission around the massive star forming region of Carina Nebula Complex
Ting-Ting Ge, Xiao-Na Sun, Rui-Zhi Yang +2
We report the Fermi Large Area Telescope (Fermi-LAT) detection of the -ray emission toward the massive star forming region of Carina Nebula Complex (CNC). Using the latest sourc…
GeV -ray Emission of Compact Steep-Spectrum Source 4C +39.23B
Ying Gu, Hai-Ming Zhang, Ying-Ying Gan +3
Thirteen yr observation data of 4FGL J0824.9+3915 with the Large Area Telescope on board the Fermi Gamma Ray Space Telescope (Fermi/LAT) are analyzed for revisiting whether 4C +39.…
Diffuse gamma-ray emission from the vicinity of young massive star cluster RSGC 1
Xiao-Na Sun, Rui-Zhi Yang, Xiang-Yu Wang
We report the Fermi Large Area Telescope (Fermi-LAT) detection of the gamma-ray emission towards the young massive star cluster RSGC 1. Using the latest source catalog and diffuse…
Diffuse gamma-ray emission toward the massive star-forming region, W40
Xiao-Na Sun, Rui-Zhi Yang, Yun-Feng Liang +4
We report the detection of high-energy gamma-ray signal towards the young star-forming region, W40. Using 10-year Pass 8 data from the Fermi Large Area Telescope (Fermi-LAT), we ex…
Leptonic or Hadronic Emission: X-Ray Radiation Mechanism of Large-scale Jet Knots in 3C 273
Zhen-Jie Wang, Jin Zhang, Xiao-Na Sun +1
A comprehensively theoretical analysis on the broadband spectral energy distributions (SEDs) of large-scale jet knots in 3C 273 is presented for revealing their X-ray radiation mec…
The GeV emission in the field of the star-forming region W30 revisited
Bing Liu, Rui-zhi Yang, Xiao-na Sun +2
We present a detailed study of the gamma-ray emission from the direction of the star-forming region W30 based on a decade of the Fermi Large Area Telescope data in the 0.3-300 GeV…
Tentative evidence of spatially extended GeV emission from SS433/W50
Xiao-Na Sun, Rui-Zhi Yang, Bing Liu +2
We analyze 10 years of Fermi-LAT data towards the SS433/W50 region. With the latest source catalog and diffuse background models, the gamma-ray excess from SS433/W50 is detected wi…
Constraining the magnetic field in the TeV halo of Geminga with X-ray Observation
Ruo-Yu Liu, Chong Ge, Xiao-Na Sun +1
Recently, the High Altitude Water Cherenkov (HAWC) collaboration reported the discovery of the TeV halo around the Geminga pulsar. The TeV emission is believed to originate from in…
The energy distribution of relativistic electrons in the kilo-parsec scale jet of M87 with Chandra
Xiao-Na Sun, Rui-Zhi Yang, Frank M. Rieger +2
The X-ray emission from the jets in Active Galactic Nuclei (AGN) carries important information on the distributions of relativistic electrons and magnetic fields on large scales. W…
On the energy distribution of relativistic electrons in the young supernova remnant G1.9+0.3
Rui-zhi Yang, Xiao-na Sun, Felix Aharonian
The broad-band X-ray observations of the youngest known galactic supernova remnant, G1.9+0.3, provide unique information about the particle acceleration at the early stages of evol…
Giant lobes of Centaurus A as seen in radio and gamma-ray images obtained with the Fermi-LAT and Planck satellites
Xiao-na Sun, Rui-zhi Yang, Benjamin Mckinley +1
The γ-ray data of Fermi-LAT on the giant lobes of Centaurus A are analysed together with the high frequency radio data obtained with the Planck satellite. The large γ-ray photon st…
Distributions of Gamma-Ray Bursts and Blazars in the Plane and Possible Implications for their Radiation Physics
Fen Lyu, En-Wei Liang, Yun-Feng Liang +5
We present a spectral analysis for a sample of redshift known GRBs observed with {\em Fermi}/GBM. Together with the results derived from our systematical spectral energy distributi…
Jet Properties of GeV-Selected Radio-Loud Narrow-Line Seyfert 1 Galaxies and Possible Connection to Their Disk and Corona
Xiao-Na Sun, Jin Zhang, Da-Bin Lin +3
The observed spectral energy distributions of five GeV-selected narrow-line Seyfert 1 (NLS1) galaxies are fitted with a model including the radiation ingredients from the relativis…
Radiation Mechanism and Jet Composition of Gamma-Ray Bursts and GeV-TeV selected Radio Loud Active Galactic Nuclei
Jin Zhang, En-Wei Liang, Xiao-Na Sun +3
Gamma-ray bursts (GRBs) and GeV-TeV selected radio loud Active Galactic Nuclei (AGNs) are compared based on our systematic modeling of the observed spectral energy distributions of…
Relativistic Jet Properties of GeV-TeV Blazars and Possible Implications for the Jet Formation, Composition, and Cavity Kinematics
Jin Zhang, Xiao-Na Sun, En-Wei Liang +3
We fit the spectral energy distributions (SEDs) of a GeV-TeV FSRQ sample with the leptonic model. Their gamma_min of the relativistic electron distributions, which significantly af…