A5054820529- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- Pulsars and Gravitational Waves Research
- SAS software applications and methods
- Astronomical Observations and Instrumentation
- Astrophysics and Cosmic Phenomena
- Particle Detector Development and Performance
- Geophysics and Gravity Measurements
- Solar and Space Plasma Dynamics
- High-pressure geophysics and materials
- Astronomy and Astrophysical Research
- Nuclear Physics and Applications
- Advanced X-ray Imaging Techniques
- Stellar, planetary, and galactic studies
- Ionosphere and magnetosphere dynamics
- Advanced X-ray and CT Imaging
- Particle Accelerators and Free-Electron Lasers
- Radiation Detection and Scintillator Technologies
- Calibration and Measurement Techniques
- Superconducting and THz Device Technology
- Astrophysics and Star Formation Studies
- Atomic and Subatomic Physics Research
- Physics of Superconductivity and Magnetism
- Mechanics and Biomechanics Studies
- Galaxies: Formation, Evolution, Phenomena
Guangxi Normal University
2025
Institute of High Energy Physics
2015-2024
Chinese Academy of Sciences
2015-2024
Xiangtan University
2021-2024
Institute of Space Sciences
2024
Consejo Superior de Investigaciones Científicas
2018-2024
Institute for Space Astrophysics and Planetology
2024
University of Chinese Academy of Sciences
2019-2024
Hefei Institutes of Physical Science
2019
High Magnetic Field Laboratory
2019
eXTP is a science mission designed to study the state of matter under extreme conditions density, gravity and magnetism. Primary goals are determination equation at supra-nuclear measurement QED effects in highly magnetized star, accretion strong-field regime gravity. targets include isolated binary neutron stars, strong magnetic field systems like magnetars, stellar-mass supermassive black holes. The carries unique unprecedented suite state-of-the-art scientific instruments enabling 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 Einstein Probe (EP) is a small satellite dedicated to time-domain astronomy monitor the sky in soft X-ray band. It mission led by Chinese Academy of Sciences and developed its space science programme with international collaboration. Its wide-field imaging capability achieved using established technology micro-pore lobster-eye focusing optics. Complementary this deep follow-up enabled Wolter-I type telescope. EP also capable fast transient alerts triggering downlink, aiming at...
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...
GRB 221009A is the brightest Gamma-Ray Burst (GRB) detected in more than 50 years of study. In this paper, we present observations X-ray and optical domains after obtained by GRANDMA Collaboration (which includes from 30 professional amateur telescopes) Insight-HXMT Collaboration. We study afterglow with empirical fitting GRANDMA+HXMT data, augmented data literature up to 60 days. then model numerically, using a Bayesian approach, HXMT-LE observations, that augment Swift-XRT additional...
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...
This article provides a review on X-ray pulsar-based navigation (XNAV). The starts with the basic concept of XNAV, and briefly introduces past, present future projects concerning XNAV. paper focuses advances key techniques supporting including pulsar database, detection system, pulse time arrival estimation. Moreover, methods to improve estimation performance XNAV are reviewed. Finally, some remarks development provided.
Abstract The early afterglow of a gamma-ray burst (GRB) can provide critical information on the jet and progenitor GRB. extreme brightness GRB 221009A allows us to probe its in unprecedented detail. In this Letter, we report comprehensive observation results (from T 0 +660 s +1860 s, where is Insight-HXMT/HE trigger time) X-ray/gamma-ray energy band 20 keV MeV) by Insight-HXMT High Energy X-ray Telescope, GECAM-C, Fermi/Gamma-ray Burst Monitor. We find that spectrum keV–20 MeV be well...
The Hard X-ray Modulation Telescope (HXMT) is China's first astronomical satellite. Based on the Direct Demodulation Method (DDM), it was designed to reconstructs images from data obtained in a scanning mode. Although this project delayed by about 15 years, will still bring us merits some key sciences of observing galactic transients and measuring diffuse emission. This satellite currently phase flight model production with expected launch late 2015.
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 The milestone discovery of GW170817-GRB 170817A-AT 2017gfo has shown that gravitational waves (GWs) could be produced during the merger a neutron star–neutron star/black hole and in electromagnetic (EM) waves, gamma-ray burst (GRB) kilonova (KN) are generated sequence after merger. Observationally, however, EM properties before phase still unclear. Here we report peculiar precursor KN-associated long-duration GRB 211211A, providing evidence This lasts ∼0.2 s, waiting time between...