A5087497739- Gamma-ray bursts and supernovae
- Astronomical Observations and Instrumentation
- Particle Detector Development and Performance
- Pulsars and Gravitational Waves Research
- Astrophysical Phenomena and Observations
- Astronomy and Astrophysical Research
- Nuclear Physics and Applications
- Dark Matter and Cosmic Phenomena
- Advanced Fiber Laser Technologies
- Particle physics theoretical and experimental studies
- Radiation Detection and Scintillator Technologies
- SAS software applications and methods
- High-pressure geophysics and materials
- Atomic and Subatomic Physics Research
- Statistical and numerical algorithms
- Image Processing and 3D Reconstruction
- Advanced Measurement and Detection Methods
- Generative Adversarial Networks and Image Synthesis
- Advanced Image Processing Techniques
- Advanced Optical Sensing Technologies
Chinese Academy of Sciences
2024
Institute of High Energy Physics
2024
Tsinghua University
2010
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 Magnetars are neutron stars with ultrahigh magnetic fields (~10 14 –10 15 G). The magnetar SGR J1935+2154 is not only one of the most active magnetars detected so far, but also unique confirmed source fast radio bursts. Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) dedicated to monitor gamma-ray transients all over sky, including short Here we report GECAM observations burst activity from 2021 January 2022 December, which results in a and...
Abstract The second brightest gamma-ray burst (GRB) in history, GRB 230307A, provides an ideal laboratory to study the mechanism of prompt emission thanks its extraordinarily high photon statistics and single-episode activity. Here we demonstrate that rapidly variable components compose overall broad single pulse-like profile. Although these individual rapid are aligned time across all energy bands, this profile conspires show a well-defined energy-dependent behavior is typically seen...
A novel method for velocity measurement is presented. In this scheme, a parallel-linear-polarization dual-frequency laser incident on the target and senses with both frequencies, which can increase maximum measurable significantly. The theoretical analysis verification experiment of are presented, show that high-velocity be achieved high precision using method.
The Fermi bubbles are two large structures above and below the Galactic Plane. They first discovered by Fermi-LAT thought to be related jet or wind from center. DArk Matter Particle Explorer (DAMPE) is a space-borne high energy particle telescope aiming at measuring cosmic rays photons in broad range. In this work, we use 4.8 years of DAMPE photon data search for emission Bubbles. We calculate TS values lobes significance its curved spectrum. obtained spectral parameters then compared with...