A5025731956- Astrophysical Phenomena and Observations
- Pulsars and Gravitational Waves Research
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Mechanics and Biomechanics Studies
- Astrophysics and Star Formation Studies
- Particle Accelerators and Free-Electron Lasers
- Particle Detector Development and Performance
- Gamma-ray bursts and supernovae
University of Chinese Academy of Sciences
2023-2024
National Astronomical Observatories
2023-2024
Chinese Academy of Sciences
2023-2024
ABSTRACT We report the results of fitting Insight-HXMT data to black hole X-ray binary MAXI J1348-430, which was discovered on January 26th, 2019, also inferred ionization state and iron abundancewith Gas Slit Camera on-board MAXI. Several observations at beginning first burst were selected, with a total 10 spectra. From residuals fits using disc plus power-law models, reflection signatures clearly visible in some these observations. use state-of-the-art $\tt {relxill}$ series model fit six...
ABSTRACT We provided a comprehensive study of the properties black hole in low-mass X-ray binary system 4U 1543-47, specifically focusing on 2021 outburst (MJD 59380–59470). Using observations from Insight-HXMT mission, we employed reflection fitting method and analysed spectral data to estimate key parameters. Through our investigation redbased 6 out 52 available observations, estimated spin parameter be $0.902_{-0.053}^{+0.054}$ inclination angle accretion disc $28.91_{-1.24}^{+1.82}$° (90...
We provided a comprehensive study of the properties black hole in low-mass X-ray binary system 4U 1543-47, specifically focusing on 2021 outburst (MJD 59380-59470). Using observations from \textit{Insight}-HXMT mission, we employed reflection fitting method and analyzed spectral data to estimate key parameters. Through our investigation redbased 6 out 52 available observations, estimated spin parameter be $0.902_{-0.053}^{+0.054}$ inclination angle accretion disk $28.91_{-1.24}^{+1.82}$...
We present results from the James Webb Space Telescope (JWST) Director's Discretionary Time Early Release Science (ERS) program 1328 targeting nearby, Luminous Infrared Galaxy (LIRG), VV 114. use MIRI and NIRSpec instruments to obtain integral-field spectroscopy of heavily obscured Eastern nucleus (V114E) surrounding regions. The spatially resolved, high-resolution, spectra reveal physical conditions in gas dust over a projected area 2-3 kpc that includes two brightest IR sources, NE SW...
The Galactic black hole candidate MAXI J0637-430 was first discovered by $\textit{MAXI/GSC}$ on 2019 November 02. We study the spectral properties of using archived $\textit{NuSTAR}$ data and $\textit{Swift}$/XRT data. After fitting eight spectra a disk component powerlaw model with absorption, we select relatively strong reflection components for detailed X-ray spectroscopy. Using most state-of-art $\tt{relxillCp}$, measures spin $\textit{a}_{\rm{*}} > 0.72$ inclination angle accretion...
We report the results of fitting Insight-HXMT data to black hole X-ray binary MAXI J1348-430, which was discovered on January 26th, 2019, with Gas Slit Camera (GSC) on-board MAXI. Several observations at beginning first burst were selected, a total 10 spectra. From residuals fits using disk plus power law models, reflection signatures clearly visible in some these observations. use state-of the-art relxill series model fit six spectra distinct and joint In particular, we focus for spin...
We present mid-infrared spectroscopic observations of the nucleus nearby Seyfert galaxy NGC 7469 taken with MIRI instrument on James Webb Space Telescope (JWST) as part Directors Discretionary Time Early Release Science (ERS) program 1328. The high resolution nuclear spectrum contains 19 emission lines covering a wide range ionization. ionization show broad, blueshifted reaching velocities up to 1700 km s$^{-1}$ and FWHM ranging from $\sim500 - 1100$ s$^{-1}$. width broad narrow line flux...