A5044663431- Astrophysical Phenomena and Observations
- Galaxies: Formation, Evolution, Phenomena
- Astrophysics and Cosmic Phenomena
- Pulsars and Gravitational Waves Research
- Radio Astronomy Observations and Technology
- Layered Double Hydroxides Synthesis and Applications
- Astrophysics and Star Formation Studies
- Adsorption and biosorption for pollutant removal
- Gamma-ray bursts and supernovae
- Stellar, planetary, and galactic studies
- Phosphorus and nutrient management
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Advanced Photocatalysis Techniques
- Catalysis and Hydrodesulfurization Studies
- Molecular Junctions and Nanostructures
- Adaptive optics and wavefront sensing
- Gold and Silver Nanoparticles Synthesis and Applications
- Photonic Crystals and Applications
- Astronomy and Astrophysical Research
- Infrared Target Detection Methodologies
- Microwave Dielectric Ceramics Synthesis
- Mechanics and Biomechanics Studies
- Surface Modification and Superhydrophobicity
- TiO2 Photocatalysis and Solar Cells
Chinese Academy of Sciences
2020-2024
Xinjiang Astronomical Observatory
2020-2024
University of Chinese Academy of Sciences
2020-2022
Jingdezhen Ceramic Institute
2021
Jingdezhen University
2021
National Taipei University of Technology
2020
State Key Laboratory of Digital Medical Engineering
2019
China University of Mining and Technology
2019
China University of Mining and Technology - Beijing
2019
Southeast University
2019
ABSTRACT Dwarf galaxies are characterized by a very low luminosity and mass. Because of significant accretion ejection activity massive black holes, some dwarf also host low-luminosity active galactic nuclei (AGNs). In few AGNs, long baseline interferometry (VLBI) observations have found faint non-thermal radio emission. SDSS J090613.77+561015.2 is AGN owning an intermediate-mass hole (IMBH) with mass $M_\mathrm{BH} = 3.6^{+5.9}_{-2.3}\times 10^5 \mathrm{ M}_{\odot }$ showing rarely seen...
Abstract We present the first multiband centimeter detection of POX 52, a nearby dwarf galaxy believed to harbor robust intermediate-mass black hole. conducted deep observations using Australia Telescope Compact Array (ATCA), spanning frequencies from 4.5 10 GHz, as well sensitive Karl G. Jansky Very Large (VLA) operating in its most extended A configuration at S band (2–4 GHz) and C (4–8 GHz). In ATCA observations, source shows compact morphology, with only one direction marginally...
We have developed an electrochemical sensor based on integrated 2D materials including SnS<sub>2</sub>, graphene oxide, and β-cyclodextrin forming a ternary nanocomposite decorated screen-printed electrode for the detection of melatonin.
The initial Si/Al ratio of supports influences the active metal composition and dispersion, acidity NiMoC/Hβ-<italic>x</italic> catalysts, performance aromatic hydrogenation.
Because the disc--jet coupling likely depends on various properties of sources probed, sample control is always an important but challenging task. In this work, we re-analyzed INTEGRAL hard X-ray-selected Seyfert galaxies. We only consider that have measurements in black hole mass, and luminosities radio X-rays. Our includes 64 sources, consists both bright AGNs low-luminosity ones. first find that, because similarity $L_{HX}/L_X$ distribution, X-ray origin radio-loud Seyferts may be same to...
Abstract Radio data can give stringent constraints for annihilating dark matter. In general, radio observations detect very accurate flux density with high resolution and different frequencies nearby galaxies. We are able to obtain the as a function of distance from galactic center S ( r , ν ). this article, we demonstrate comprehensive analysis M33 galaxy, combining profile ) frequency spectrum get matter annihilation parameters. By analyzing archival obtained Effelsberg telescope, show...
Abstract It is believed that dual active galactic nuclei (AGN) form during galaxy mergers. Studying dual-AGN emission can provide valuable insights into merging and evolution. To investigate parsec-scale radio properties, we observed eight components of four selected systems using the Very Long Baseline Array (VLBA) at 5 GHz in multiple-phase-center mode. Among them, two compact components, labeled J0051+0020B J2300-0005A, were detected clearly on parsec scales for first time. However, other...
Silver nanowire (AgNWs) transparent conductive film (TCF) is considered to be the most favorable material replace indium tin oxide (ITO) as next-generation film. However, disadvantages of AgNWs, such easy oxidation and high wire-wire junction resistance, dramatically limit its commercial application. In this paper, moisture treatment was adopted, water dripped on surface AgNWs or breathed so that covered with a layer vapor. The morphology silver mesh nodes complex, curvature large. According...
Active galactic nuclei (AGN) produce vast amounts of high energy radiation deep in their central engines. X-rays either escape the AGN or are absorbed and re-emitted mostly as IR. By studying dispersion ratio observed mid-IR luminosity to 2-10keV X-ray (R_{ir/x}) we can investigate reprocessing material (possibly a torus donut dust) engine, independent model assumptions. We studied luminosities heterogeneous sample 245 from literature. found that when removed with prominent jets, ~90% Type I...
We analyze the jet-disk coupling for different subsamples from a complete hard X-ray Seyfert sample to study indices and their relation accretion rate. The results are: (1) power-law index ranges nearly unity (linear correlation) radio-loud Seyferts significantly less than radio-quiet ones. This declining trend of also holds larger sources compact ones; (2) with intermediate high rate (Eddington ratio $\lambda\sim$ 0.001 0.3) show linear coupling, but it shallows near super Eddington...
Radio data can give stringent constraints for annihilating dark matter. In general, radio observations detect very accurate flux density with high resolution and different frequencies nearby galaxies. We are able to obtain the as a function of distance from galactic center $S(r,\nu)$. this article, we demonstrate comprehensive analysis M33 galaxy, combining profile $S(r)$ frequency spectrum $S(\nu)$ get matter annihilation parameters. By analyzing archival obtained Effelsberg telescope, show...
We obtain a sample of 1192 type-I quasars with the UV-optical, radio, and x-ray waveband coverage, which combined data from Huang Chang [Mon. Not. R. Astron. Soc. 515, 1358 (2022)] other matching objects SDSS-DR16 FIRST, XMM-Newton, Chandra Source Catalog, 407 flat-spectrum radio-loud blazars Roma-BZCAT, can be used to investigate their multiband luminosity correlations measure distances these quasar (RLQ) samples. check correlation between x-ray, radio for various groupings radio-quiet...
It is believed that dual active galactic nuclei (dual AGN) will form during galaxies merge. Studying dual-AGN emission can provide valuable insights into galaxy merging and evolution. To investigate parsec-scale radio properties, we observed eight components of four selected systems using the Very Long Baseline Array (VLBA) at 5 GHz in multiple-phase-center mode. Among them, two compact components, labeled J0051+0020B J2300-0005A, were detected clearly on parsec scales for first time....
Type-C quasi-periodic oscillations (QPOs) in black hole X-ray transients typically manifest the low-hard and hard-intermediate states. This study presents a detailed spectral temporal analysis of candidate Swift J1727.8-1613 using NICER observations from August September 2023, with focus on first flare period. The time-averaged spectra, along rms phase-lag spectra QPOs, were jointly fitted time-dependent Comptonization model \text{vkompthdk} to examine geometry corona during this flare....
We use the star formation rate-stellar mass relation ($SFR - {M_ * }$) of galaxies to measure their luminosity distances as well estimate cosmological parameters. obtain a sample 341 high-redshift at $5 < z 14$, and 51 others $1.8 3.5$ from JWST observations, which can be used investigate correlation between rate stellar mass, determine distance. The $SFR \propto {\kern 1pt} {({M_ }/{M_ \odot })^\gamma }$ applied check nonlinear ${M_ give On other hand, it also test if depends on absolute UV...
We present the first multi-band centimeter detection of POX 52, a nearby dwarf galaxy believed to habor robust intermediate mass black hole (IMBH). conducted deep observations using Australia Telescope Compact Array (ATCA), spanning frequencies from 4.5 10 GHz, as well sensitive Karl G. Jansky Very Large (VLA) operating in its most extended A-configuration at S band (2--4 GHz) and C (4--8 GHz). In ATCA observations, source shows compact morphology, with only one direction marginally...
We studied the relation of accretion-jet power and disk luminosity, especially jet efficiencies radiative for different accretion disks as well black hole (BH) spin, in order to explore origin radio emission X-ray binaries (BHXBs). found that efficiency increases more rapidly (efficient) than nearly constant thin component high regime, which could account steep track ($\mu>1$) observed luminosity relations ($L_{\rm R}\propto L_{\rm X}^{\mu}$), but may not be able explain standard...
We hereby report a low-speed (about~21~km$\cdot$~s$^{-1}$ with respect to the Sun) intruder member in Hyades cluster based on data literature. The results show that star is non-native for Hyades, its radial velocity being smaller than of cluster, even exceeding standard deviation by factor 9. Furthermore, analyzing and comparing orbits this host, it may have intruded into host past 2~Myr. If star's current motion orbit remains unchanged, leave next This implies be temporarily residing...
Preparing nanoscale patterns with bright and high resolution structural colors for object decoration remains a challenge. Herein, the authors propose strategy fabricating surface‐universal large‐area photonic crystal monolayer membrane stable plasmonic coloration based on polydopamine (PDA) modification, self‐assembly, transfer printing, e‐beam evaporation. In practice, is achieved different diameters of silica polystyrene (PS) colloidal nanoparticles through layer‐by‐layer (LBL)...