Publications (36)
Gamma-Ray Burst/Supernova Associations: Energy partition and the case of a magnetar central engine
Hou-Jun Lü, Lin Lan, Bing Zhang +4
The favored progenitor model for Gamma-ray Bursts (GRBs) with Supernova (SN) association is the core collapse of massive stars. One possible outcome of such a collapse is a rapidly…
Distinguish Confusion in Legal Judgment Prediction via Revised Relation Knowledge
Nuo Xu, Pinghui Wang, Junzhou Zhao +5
Legal Judgment Prediction (LJP) aims to automatically predict a law case's judgment results based on the text description of its facts. In practice, the confusing law articles (or…
Science objectives of the Einstein Probe mission
Weimin Yuan, Lixin Dai, Hua Feng +93
The Einstein Probe (EP) is an interdisciplinary mission of time-domain and X-ray astronomy. Equipped with a wide-field lobster-eye X-ray focusing imager, EP will discover cosmic X-…
Extremely bright GRB 160625B with multi-episodes emission: Evidences for long-term ejecta evolution
Hou-Jun Lü, Jing Lü, Shu-Qing Zhong +6
GRB 160625B is an extremely bright GRB with three distinct emission episodes. By analyzing its data observed with the GBM and LAT on board the {\em Fermi} mission, we find that a m…
SERL-SQL: Selective Hindsight Distillation for Text-to-SQL Reinforcement Agentic Learning
Tao Liu, Tao Feng, Xiangheng Li +9
Recent Text-to-SQL systems increasingly rely on multi-turn interaction, execution feedback, and reinforcement learning. However, most existing methods use execution correctness onl…
Giant X-ray and optical Bump in GRBs: evidence for fall-back accretion model
Litao Zhao, He Gao, WeiHua Lei +2
The successful operation of dedicated detectors has brought us valuable information for understanding the central engine and the progenitor of gamma-ray bursts (GRBs). For instance…
A Search for Millilensing Gamma-Ray Bursts in the Observations of Fermi GBM
Shi-Jie Lin, An Li, He Gao +8
Millilensing of Gamma-Ray Bursts (GRBs) is expected to manifest as multiple emission episodes in a single triggered GRB with similar light-curve patterns and similar spectrum prope…
Magnetization Factors of Gamma-Ray Burst Jets Revealed by a Systematic Analysis of the Fermi Sample
An Li, He Gao, Lin Lan +1
The composition of gamma-ray burst (GRB) jets remained a mystery until recently. In practice, we usually characterize the magnetization of the GRB jets () through the ratio b…
The shallow decay segment of GRB X-ray afterglow revisited
Litao Zhao, Binbin Zhang, He Gao +3
Based on the early-year observations from Neil Gehrels \emph{Swift} Observatory, \cite{liang07} performed a systematic analysis for the shallow decay component of gamma-ray bursts…
The peculiar GRB 110731A: Lorentz factor, jet composition, central engine, and progenitor
HouJun Lü, XiangGao Wang, RuiJing Lu +7
The jet compositions, central engines, and progenitors of gamma-ray bursts (GRBs) remain open questions in GRB physics. Applying broadband observations, including GRB prompt emissi…
Insight-HXMT and GECAM-C observations of the brightest-of-all-time GRB 221009A
Zheng-Hua An, S. Antier, Xing-Zi Bi +174
GRB 221009A is the brightest gamma-ray burst ever detected since the discovery of this kind of energetic explosions. However, an accurate measurement of the prompt emission propert…
Federated Learning over Coupled Graphs
Runze Lei, Pinghui Wang, Junzhou Zhao +6
Graphs are widely used to represent the relations among entities. When one owns the complete data, an entire graph can be easily built, therefore performing analysis on the graph i…
Precursors in Short Gamma-ray Bursts as a Possible Probe of Progenitors
Shu-Qing Zhong, Zi-Gao Dai, Ji-Gui Cheng +2
We extract 18 candidate short gamma-ray bursts (SGRBs) with precursors from 660 SGRBs observed by {\em Fermi} and {\em Swift} satellites, and carry out a comprehensive analysis on…
Double Neutron Star Mergers: Are Late-time Radio Signals Overestimated?
Shao-Ze Li, Yun-Wei Yu, He Gao +1
The coalescence of binary neutron stars can yield the expulsion of a fast-moving, quasi-isotropic material, which may induce thermal radiation and give rise to kilonova emission. M…
Can fallback accretion on magnetar model power the X-ray flares simultaneously observed with gamma-rays of Gamma-ray bursts?
Wen-Yuan Yu, Hou-Jun Lü, Xing Yang +2
The prompt emission, X-ray plateau, and X-ray flares of Gamma-ray bursts (GRB) are thought to be from internal dissipation, and the magnetar as the central engine with propeller fa…
On the possibility to detect gravitational waves from post-merger super-massive neutron stars with a kilohertz detector
Yikang Chen, Bin Liu, Shunke Ai +4
The detection of a secular post-merger gravitational wave (GW) signal in a binary neutron star (BNS) merger serves as strong evidence for the formation of a long-lived post-merger…
{\em Fermi}/GBM Short Gamma-ray Burst Catalog and Case Study for GRB 170817A/GW 170817
Rui-Jing Lu, Shen-Shi Du, Ji-Gui Cheng +4
Motivating by the discovery of association between GW 170817 and sGRB 170817A, we present a comprehensive analysis for sGRBs observed with Fermi/GBM in 9 operation years and study…
What constraints can one pose on the maximum mass of neutron stars from multi-messenger observations?
Shunke Ai, He Gao, Yong Yuan +2
The maximum mass of neutron stars () plays a crucial role in understanding their equation of state (EoS). Previous studies have used the measurements for the compactne…
Diagnosing the remnants of binary neutron star merger from GW170817/GRB170817A event
Hou-Jun Lü, Jun Shen, Lin Lan +3
The event GW170817/GRB 170817A, discovered via the successful joint observation of its gravitational wave radiation and its multi-wavelength electromagnetic counterparts, was the f…
Meta Reinforcement Learning with Task Embedding and Shared Policy
Lin Lan, Zhenguo Li, Xiaohong Guan +1
Despite significant progress, deep reinforcement learning (RL) suffers from data-inefficiency and limited generalization. Recent efforts apply meta-learning to learn a meta-learner…
SVOM Follow-up Observation Coordinating Service
Xu-hui Han, Pin-pin Zhang, Yu-jie Xiao +27
The Sino-French SVOM (Space Variable Objects Monitor) mission is a space-based astronomy mission complemented with ground-based dedicated instrumentation. It aims to explore and st…
Node Classification on Graphs with Few-Shot Novel Labels via Meta Transformed Network Embedding
Lin Lan, Pinghui Wang, Xuefeng Du +3
We study the problem of node classification on graphs with few-shot novel labels, which has two distinctive properties: (1) There are novel labels to emerge in the graph; (2) The n…
Evidence for gravitational-wave dominated emission in the central engine of short GRB 200219A
Hou-Jun Lü, Yong Yuan, Lin Lan +7
GRB 200219A is a short gamma-ray burst (GRB) with an extended emission (EE) lasting s. By analyzing data observed with the {\em Swift}/BAT and {\em Fermi}/GBM, we find tha…
Constraining the Braking Index and Energy Partition of Magnetar spindown with {\em Swift}/XRT data
Hou-Jun Lü, Lin Lan, En-Wei Liang
The long-lasting X-ray plateau emission in long gamma-ray bursts (GRBs) shows observational evidence for ongoing energy injection, which may be from magnetar spindown due to energy…
SVOM Science User Support Services at Chinese Science Center
Xu-hui Han, Li-ping Xin, Jing Wang +25
The Chinese-French SVOM (Space-based Multi-band Astronomical Variable Objects Monitor) mission is dedicated to the study of gamma-ray bursts (GRBs) from the distant universe. A key…
The evolution effects of radius and moment of inertia for rapidly rotating neutron stars
Lin Lan, He Gao, Shunke Ai +1
A newly born millisecond magnetar is thought to be the central engine of some gamma-ray bursts (GRBs), especially those that present long-lasting X-ray plateau emissions. By solvin…
Constraining the nuclear equation of state via gravitational-wave radiation of short gamma-ray burst remnants
Lin Lan, Hou-Jun Lü, Jared Rice +1
The observed internal plateau of X-ray emission in some short GRBs suggests the formation of a remnant supra-massive magnetar following a double neutron star (NS) merger. In this p…
The properties of prompt emission in short GRBs with extended emission observed by {\em Fermi}/GBM
Lin Lan, Rui-Jing Lu, Hou-Jun Lü +4
Short GRBs with extended emission (EE) that are composed initially of a short-hard spike and followed by a long-lasting EE, are thought to be classified as a subsection of short GR…
Characteristics of Two-episode Emission Patterns in {\em Fermi} Long Gamma-Ray Bursts
Lin Lan, Hou-Jun Lü, Shu-Qing Zhong +8
Two-episode emission components separated by quiescent gaps in the prompt emission of gamma-ray bursts (GRBs) have been observed in the {\em Swift} era, but there is a lack of spec…
The Second Plateau in X-ray Afterglow Providing Additional Evidence for Rapidly Spinning Magnetars as the GRB Central Engine
Litao Zhao, Liangduan Liu, He Gao +3
Evidence for the central engine of gamma-ray bursts (GRBs) has been collected in the Neil Gehrels \emph{Swift} data. For instance, some GRBs show an internal X-ray plateau followed…
The electromagnetic and gravitational-wave radiations of X-ray transient CDF-S XT2
Hou-Jun Lü, Yong Yuan, Lin Lan +3
Binary neutron star (NS) mergers may result in remnants of supra-massive or even stable NS, which have been supported indirectly by observed X-ray plateau of some gamma-ray bursts…
Constrain magnetar parameters by taking into account the evolutionary effects of radius and moment of inertia with \emph{Swift}/XRT data
Lin Lan, He Gao, Shunke Ai +5
A newly born millisecond magnetar has been proposed as one possible central engine of some GRBs with X-ray plateau emission. In this work, we systematically analyzed the Swift/XRT…
Constraining the Properties of GRB Accreting Magnetar with Evolutionary Effects Using \emph{Swift}/XRT Data
Lin Lan, He Gao, Litao Zhao +6
A newly born millisecond magnetar has been proposed as one possible central engine of some long gamma-ray bursts (LGRBs) with X-ray plateau. In this work, we used a universal corre…
GRB 221009A: An ordinary nearby GRB with extraordinary observational properties
Lin Lan, He Gao, An Li +16
The gamma-ray burst GRB 221009A, known as the ``brightest-of-all-time" (BOAT), is the closest energetic burst detected so far, with an energy of ergs.…
Lorentz Invariance Violation Limits from the Spectral Lag Transition of GRB~190114C
Shen-Shi Du, Lin Lan, Jun-Jie Wei +8
The spectral lags of gamma-ray bursts (GRBs) have been viewed as the most promising probes of the possible violations of Lorentz invariance (LIV). However, these constraints usuall…
Electromagnetic Emission from newly-born Magnetar Spin-Down by Gravitational-Wave and Magnetic Dipole Radiations
Hou-Jun Lü, Le Zou, Lin Lan +1
A newly-born magnetar is thought to be central engine of some long gamma-ray bursts (GRBs). We investigate the evolution of the electromagnetic (EM) emission from the magnetic dipo…