Yunyong Tang
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View article: Investigating Multiband Variability Characteristics of the Typical BLSy1 Mrk 1220 through Intensive Swift Monitoring
Investigating Multiband Variability Characteristics of the Typical BLSy1 Mrk 1220 through Intensive Swift Monitoring Open
Broad-line Seyfert 1 galaxies (BLSy1s), characterized by high black hole masses and low accretion rates, represent a crucial subclass of active galactic nuclei. We present a systematic analysis of the variability and X-ray spectral propert…
View article: Analysis of X-Ray Surface Brightness Radial Profiles in Several Relatively Symmetric Young Supernova Remnants
Analysis of X-Ray Surface Brightness Radial Profiles in Several Relatively Symmetric Young Supernova Remnants Open
Based on observations from XMM-Newton, we analyze the surface brightness radial profiles of several young supernova remnants (SNRs) with relatively symmetric structures. The surface brightness data are obtained from the MOS1, MOS2, and PN …
View article: A Minimal Stochastic Variability Model of Blazars in Turbulent Cascade
A Minimal Stochastic Variability Model of Blazars in Turbulent Cascade Open
In this paper, we propose a novel minimal physical model to elucidate the long-term stochastic variability of blazars. The model is built on the realistic background of magnetized plasma jets dissipating energy through a turbulent cascade …
View article: Systematic Search for and Study of Short-timescale Flare Structures in BL Lac Object Gamma-Ray Emission
Systematic Search for and Study of Short-timescale Flare Structures in BL Lac Object Gamma-Ray Emission Open
We present here the first systematic search of short-timescale γ -ray flares from 29 high Galactic latitude BL Lac objects over 14 yr of Fermi Large Area Telescope data. Using a combined Bayesian Blocks and HOP algorithm, we identified sev…
View article: Systematic Search and Study of Short-Timescale Flare Structures in BL Lac object Gamma-ray Emission
Systematic Search and Study of Short-Timescale Flare Structures in BL Lac object Gamma-ray Emission Open
We present here the first systematic search of short timescale $γ$-ray flares from 29 high Galactic latitude BL Lac objects over 14 years of Fermi Large Area Telescope data. Using a combined Bayesian Blocks and HOP algorithm, we identified…
View article: Porous Structure Regulation of Pps-Reinforced Zro2/Psu Composite Membranes by Pvp for Alkaline Water Electrolysis
Porous Structure Regulation of Pps-Reinforced Zro2/Psu Composite Membranes by Pvp for Alkaline Water Electrolysis Open
View article: A Special State Transition in the Blazar OT 081: Implication for the Unified State Transition Paradigm of Different-scale Black Hole Systems
A Special State Transition in the Blazar OT 081: Implication for the Unified State Transition Paradigm of Different-scale Black Hole Systems Open
Exploring the similar behavior of black hole systems with different scales will provide insight into the unified physical laws of black hole systems. Here, we report a special spectral state transition process in blazar OT 081, which is dr…
View article: The variability and soft X-ray excess properties of narrow-line Seyfert 1 galaxies: The<i>Swift</i>view
The variability and soft X-ray excess properties of narrow-line Seyfert 1 galaxies: The<i>Swift</i>view Open
We present here a systematic study on the mechanism of the long/short timescale variability and the origin of soft X-ray excess for narrow-line Seyfert 1 galaxies (NLSy1s) based on the multi-epoch multi-band observations of the Swift teles…
View article: Evaluation of hadronic emission in starburst galaxies and star-forming galaxies
Evaluation of hadronic emission in starburst galaxies and star-forming galaxies Open
In this work, we reanalyzed 11 years of spectral data from the Fermi Large Area Telescope ( Fermi -LAT) of currently observed starburst galaxies (SBGs) and star-forming galaxies (SFGs). We used a one-zone model provided by NAIMA and the ha…
View article: In-depth investigation of the physical origin of the soft X-ray excess in PG 1448+273
In-depth investigation of the physical origin of the soft X-ray excess in PG 1448+273 Open
We present systematic X-ray spectral and variability analyses for the narrow-line Seyfert 1 galaxy (NLsy1), PG 1448+273, using the data from two long-exposure XMM-Newton observations of the source in the different flux states. These X-ray …
View article: Evaluation of Hadronic Emission in Starburst Galaxies and Star-forming Galaxies
Evaluation of Hadronic Emission in Starburst Galaxies and Star-forming Galaxies Open
In this work, we reanalyzed 11 years of spectral data from the \textit{Fermi} Large Area Telescope (\textit{Fermi}-LAT) of currently observed starburst galaxies (SBGs) and star-forming galaxies (SFGs). We used a one-zone model provided by …