A5057861029- Astrophysical Phenomena and Observations
- Pulsars and Gravitational Waves Research
- Gamma-ray bursts and supernovae
- Astrophysics and Cosmic Phenomena
- High-pressure geophysics and materials
- Particle Detector Development and Performance
- Hydraulic Fracturing and Reservoir Analysis
- Mechanics and Biomechanics Studies
- Radiation Detection and Scintillator Technologies
- Drilling and Well Engineering
- Seismic Imaging and Inversion Techniques
- Nuclear Physics and Applications
- Rock Mechanics and Modeling
- Astronomical Observations and Instrumentation
- Advancements in Battery Materials
- Pulmonary Hypertension Research and Treatments
- Cancer-related molecular mechanisms research
- Radio Astronomy Observations and Technology
- Superconducting and THz Device Technology
- Liver Disease Diagnosis and Treatment
- Cancer-related gene regulation
- Solar and Space Plasma Dynamics
- Supercapacitor Materials and Fabrication
- Epigenetics and DNA Methylation
- CCD and CMOS Imaging Sensors
Shandong University of Technology
2025
Nankai University
2020-2025
State Grid Shanxi Electric Power Company Electric Power Research Institute
2025
Ministry of Education of the People's Republic of China
2025
Northwest University
2025
Institute of High Energy Physics
2015-2024
Chinese Academy of Sciences
2016-2024
China National Petroleum Corporation (China)
2009-2024
Indiana University Bloomington
2024
China University of Petroleum, Beijing
2017-2023
Abstract Swift J1727.8–1613 is a black hole X-ray binary newly discovered in 2023. We perform spectral analysis with simultaneous Insight-HXMT, NICER, and NuSTAR observations when the source was approaching hard intermediate state. Such joint view reveals an additional component apart from normally observed reflection spectrum, to be distinguished usual systems. By including this extra we have measured high spin of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll">...
Summary Deep shale gas reservoirs are characterized by high in-situ stresses, a horizontal-stress difference (12 MPa), development of bedding seams and natural fractures, stronger plasticity than shallow shale. All these factors hinder the extension hydraulic fractures formation complex fracture networks. Conventional hydraulic-fracturing techniques (that use single fluid, such as guar fluid or slickwater) do not account for initiation propagation primary secondary induced fractures. For...
We present the X-ray timing results of new black hole candidate (BHC) MAXI J1535-571 during its 2017 outburst from Hard Modulation Telescope (\emph{Insight}-HXMT) observations taken September 6 to 23. Following definitions given by \citet{Belloni2010}, we find that source exhibits state transitions Low/Hard (LHS) Intermediate (HIMS) and eventually Soft (SIMS). Quasi-periodic oscillations (QPOs) are found in intermediate states, which suggest different types QPOs. With large effective area...
The detection of cyclotron resonance scattering features (CRSFs) is the only way to directly and reliably measure magnetic field near surface a neutron star (NS). broad energy coverage large collection area \emph{Insight}-HXMT in hard X-ray band allowed us detect CRSF with highest known date, reaching about 146 keV during 2017 outburst first galactic pulsing ultraluminous source (pULX) Swift J0243.6+6124. During this outburst, was prominent close peak luminosity $\sim 2\times10^{39}$ erg...
Abstract: The storage and utilization of energy is one the important topics in development science technology, especially regarding secondary batteries, which are efficient electrical-/chemical-energy-converting devices. This review systematically introduces research progress made context starting from their leading to introduction related basic theoretical knowledge. current on batteries that based different systems key materials discussed detail, includes lithium-ion sodium-ion...
GRB 221009A is the brightest gamma-ray burst ever detected since discovery of this kind energetic explosions. However, an accurate measurement prompt emission properties very challenging due to its exceptional brightness. With joint observations \textit{Insight}-HXMT and GECAM-C, we made unprecedentedly during first $\sim$1800 s 221009A, including precursor, main (ME, which dominates in flux), flaring early afterglow, hard X-ray soft band from $\sim$ 10 keV 6 MeV. Based on GECAM-C...
Abstract Fast radio bursts (FRBs) are short pulses observed in band from cosmological distances, some of which emit repeating bursts. The physical origins these mysterious events have been subject to wide speculations and heated debates. One class models invoke soft gamma-ray repeaters (SGRs), or magnetars, as the sources FRBs. Magnetars rotating neutron stars with extremely strong magnetic field can sporadically X-ray (keV) (sub-MeV) duration 102 s 102 s. However, even though bright no...
The origin(s) and mechanism(s) of fast radio bursts (FRBs), which are short pulses from cosmological distances, have remained a major puzzle since their discovery. We report strong Quasi-Periodic Oscillation(QPO) 40 Hz in the X-ray burst magnetar SGR J1935+2154 associated with FRB 200428, significantly detected Hard Modulation Telescope (Insight-HXMT) also hinted by Konus-Wind data. QPOs only been rarely detected; our 3.4 sigma (p-value is 2.9e-4) detection QPO reported here reveals...
Abstract We report on a detailed spectral analysis of the transient X-ray pulsar 1A 0535+262, which underwent brightest giant outburst ever recorded for this source from 2020 November to December with peak luminosity 1.2 × 10 38 erg s −1 . Thanks unprecedented energy coverage and high-cadence observations provided by Insight-HXMT, we were able find first time evidence transition accretion regime. At high luminosity, above critical 6.7 37 , cyclotron absorption line anticorrelates luminosity....
We report on analysis of observations the bright transient X-ray pulsar \src obtained during its 2017-2018 giant outburst with Insight-HXMT, \emph{NuSTAR}, and \textit{Swift} observatories. focus discovery a sharp state transition timing spectral properties source at super-Eddington accretion rates, which we associate disk to radiation pressure dominated (RPD) state, first ever directly observed for magnetized neutron star. This occurs slightly higher luminosity compared already reported...
In this work, we report the in-orbit demonstration of X-ray pulsar navigation with Insight-Hard Modulation Telescope (Insight-HXMT), which was launched on Jun. 15th, 2017. The new method 'Significance Enhancement Pulse-profile Orbit-dynamics' (SEPO) is adopted to determine orbit observations only one pulsar. test, Crab chosen and observed by Insight-HXMT from Aug. 31th Sept. 5th in Using 5-day-long observation data, determined successfully three telescopes onboard - High Energy (HE), Medium...
ABSTRACT We report on the Insight-HXMT observations of new black hole X-ray binary MAXI J1820+070 during its 2018 outburst. Detailed spectral analysis via continuum fitting method shows an evolution inferred spin high soft sate. Moreover, hardness ratio, non-thermal luminosity and reflection fraction also undergo evolution, exactly coincident to period when transition takes place. The unphysical is attributed inner disc, which caused by collapse a hot corona due condensation mechanism or may...
Abstract We propose a method based on the Hilbert–Huang transform (HHT) to recover high-energy waveform of low-frequency quasiperiodic oscillations (QPOs). Based method, we successfully obtain modulation phase-folded light curve above 170 keV using QPO phase reconstructed at lower energies in MAXI J1535–571 with Insight-HXMT observations. A comprehensive simulation study is conducted demonstrate that such indeed originates from QPO. Thus, highest turn out significantly exceed upper limit...
Corona cooling was detected previously from stacking a series of short type-I bursts occurred during the low/had state atoll outburst. Type-I are hence regarded as sharp probe to our better understanding on basic property corona. The launch first Chinese X-ray satellite Insight-HXMT has large detection area at hard X-rays which provide almost unique chance move further in this research field. We report corona by single burst showing up {\bf flare} 4U 1636-536. This duration $\sim$13 seconds...
No robust detection of prompt electromagnetic counterparts to fast radio bursts (FRBs) has yet been obtained, in spite several multi-wavelength searches carried out so far. Specifically, X/gamma-ray are predicted by some models. We planned on searching for gamma-ray the Insight-Hard X-ray Modulation Telescope (Insight-HXMT) data, taking advantage unique combination large effective area keV-MeV energy range and sub-ms time resolution. selected 39 FRBs that were promptly visible from...