176 citations · 756 across the 35 of their papers we have counts for
36 papers
Observational evidence of black hole event horizon from ultra-compact X-ray binaries
Qian-Qi Ma, Wei-Min Gu, Shan-Shan Weng +1
The event horizon is the most crucial feature that distinguishes black hole (BH) from all other objects in the universe. However, since no radiation can escape from the event horiz…
Anisotropic Particle Transport from a Pulsar Wind Nebula Revealed by Einstein Probe and LHAASO
Zhen Cao, F. Aharonian, Y. X. Bai +339
Pulsar wind nebulae (PWNe) are major cosmic ray accelerators, yet the mechanisms transporting high-energy particles into the interstellar medium remain elusive. Building on the LHA…
The Extended Ultrahigh-energy Gamma-Ray Emission in the Vicinity of PSR J2238+5903
Zhen Cao, F. Aharonian, Y. X. Bai +324
We present a comprehensive analysis of the recently discovered TeV gamma-ray source, LHAASO J2238+5900. Based on data collected from the LHAASO, our fitting results suggest that th…
The first extragalactic ultra-compact X-ray binary : a candidate black hole-white dwarf system
Qian-Qi Ma, Jiachang Zhang, Wei-Min Gu +3
M31 UCXB-1 is one of the brightest X-ray point sources in the bulge of M31, with a peak X-ray luminosity $ L_{\mathrm{0.5-10 \: keV}} = 2.9^{+0.2}_{-0.2} \times 10^{38} \: \mathrm{…
Study of Wide-Field-of-View X-ray Observations of the Virgo Cluster Using the Lobster Eye Imager for Astronomy
Wen-Cheng Feng, Shu-Mei Jia, Hai-Hui Zhao +9
The Lobster Eye Imager for Astronomy (LEIA) is the pathfinder of the wide-field X-ray telescope used in the Einstein Probe mission. In this study, we present an image of the Virgo…
Bubble in the Whale: Identifying the Optical Counterparts and Extended Nebula for the Ultraluminous X-ray Sources in NGC 4631
Jing Guo, Jianfeng Wu, Hua Feng +9
We present a deep optical imaging campaign on the starburst galaxy NGC 4631 with CFHT/MegaCam. By supplementing the HST/ACS and Chandra/ACIS archival data, we search for the optica…
Comparing the Super-Eddington accretion of SMC X-3 and RX J0209.6-7427 with Swift J0243.6+6124
Jiren Liu, Georgios Vasilopoulos, MingYu Ge +4
We study the giant outbursts of SMC X-3 and RX J0209.6-7427 to compare their super-Eddington accretion regime with that of Swift J0243.6+6124. The high double-peak profile of SMC X…
Repeating Ultraluminous X-ray Bursts and Repeating Fast Radio Bursts: A Possible Association?
Hao-Yan Chen, Wei-Min Gu, Jin-Bo Fu +3
Ultraluminous X-ray bursts (hereafter ULXBs) are ultraluminous X-ray flares with a fast rise ( one minute) and a slow decay ( an hour), which are commonly observed in e…
Radio pulsations from a neutron star within the gamma-ray binary LS I +61 303
Shan-Shan Weng, Lei Qian, Bo-Jun Wang +9
LS I +61 303 is one of the rare gamma-ray binaries, emitting most of their luminosity in photons with energies beyond 100 MeV. The 26.5 d orbital period is clearly…
Peculiar disk behaviors of the black hole candidate MAXI J1348-630 in the hard state observed by Insight-HXMT and Swift
W. Zhang, L. Tao, R. Soria +93
We present a spectral study of the black hole candidate MAXI J1348-630 during its 2019 outburst, based on monitoring observations with Insight-HXMT and Swift. Throughout the outbur…
Time-lag between disk and corona radiation leads to hysteresis effect observed in black-hole X-ray binary MAXI J1348-630
Shan-Shan Weng, Zhen-Yi Cai, Shuang-Nan Zhang +4
Accretion is an essential physical process in black-hole X-ray binaries (BHXRBs) and active galactic nuclei. The properties of accretion flows and their radiation were originally c…
Evolution of hard X-ray photon index in black-hole X-ray binaries: hints for accretion physics
Hao Liu, AiJun Dong, ShanShan Weng +1
The anti- and positive correlations between X-ray photon index and Eddington-scaled X-ray luminosity were found in decay phase of X-ray binary outbursts and a sample of active gala…
NuSTAR and XMM-Newton observations of SXP 59 during its 2017 giant outburst
Shan-Shan Weng, Ming-Yu Ge, Hai-Hui Zhao
The Be X-ray pulsar (BeXRP) SXP 59 underwent a giant outburst in 2017 with a peak X-ray luminosity of erg~s. We report on the X-ray behaviour of SXP 59 wi…
X-ray spectral variations of synchrotron peak in BL Lacs
Yijun Wang, Shifu Zhu, Yongquan Xue +3
The spectral energy distribution of blazars around the synchrotron peak can be well described by the log-parabolic model that has three parameters: peak energy (), pe…
The brightening of the pulsar wind nebula of PSR B0540--69 after its spin-down rate transition
M. Y. Ge, F. J. Lu, L. L. Yan +6
It is believed that an isolated pulsar loses its rotational energy mainly through a relativistic wind consisting of electrons, positrons and possibly Poynting flux\cite{Pacini1973,…
A statistical analysis of the "heartbeat" behaviour of GRS 1915+105
Shan-Shan Weng, Ting-Ting Wang, Jing-Ping Cai +2
GRS 1915+105 has been active for more than 26 years since it was discovered in 1992. There are hundreds of RXTE pointed observations on this source, and the quasi-regular flares wi…
Insight-HXMT observations of the New Black Hole Candidate MAXI J1535-571: timing analysis
Y. Huang, J. L. Qu, S. N. Zhang +118
We present the X-ray timing results of the new black hole candidate (BHC) MAXI J1535-571 during its 2017 outburst from Hard X-ray Modulation Telescope (\emph{Insight}-HXMT) observa…
Recurrent outbursts revealed in 3XMM J031820.8-663034
Hai-Hui Zhao, Shan-Shan Weng, Jun-Xian Wang
3XMM J031820.8-663034, first detected by ROSAT in NGC 1313, is one of a few known transient ultraluminous X-ray sources (ULXs). In this paper, we present decades of X-ray data of t…
Evidence for precession due to supercritical accretion in ultraluminous X-ray sources
Shan-Shan Weng, Hua Feng
Most ultraluminous X-ray sources (ULXs) are thought to be supercritical accreting compact objects, where massive outflows are inevitable. Using the long-term monitoring data with t…
Pulse phase-resolved analysis of SMC X-3 during its 2016--2017 super-Eddington outburst
Hai-Hui Zhao, Shan-Shan Weng, Ming-Yu Ge +2
The Be X-ray pulsar SMC X-3 underwent an extra long and ultraluminous giant outburst from 2016 August to 2017 March. The peak X-ray luminosity is up to erg/s, sugges…
Swift observations of SMC X-3 during its 2016-2017 super-Eddington outburst
Shan-Shan Weng, Ming-Yu Ge, Hai-Hui Zhao +4
The Be X-ray pulsar, SMC X-3 underwent a giant outburst from 2016 August to 2017 March, which was monitored with the Swift satellite. During the outburst, its broadband flux increa…
The X-ray view of black-hole candidate Swift J1842.5-1124 during its 2008 outburst
Hai-Hui Zhao, Shan-Shan Weng, Jin-Lu Qu +2
The spectral and temporal evolution during X-ray outbursts give important clues on the accretion process and radiation mechanism in black-hole X-ray binaries (BH XRBs). A set of Sw…
The X-ray Decay of the ultraluminous supernova SN 1978K in NGC 1313
Hai-Hui Zhao, Shan-Shan Weng, C. -Y. Ng
The Type IIn supernova (SN) 1978K in the nearby galaxy NGC 1313 has remained bright in multiwavelengths for more than yr. The archival data of SN 1978K collected with ROS…
eXTP -- enhanced X-ray Timing and Polarimetry Mission
S. N. Zhang, M. Feroci, A. Santangelo +181
eXTP is a science mission designed to study the state of matter under extreme conditions of density, gravity and magnetism. Primary targets include isolated and binary neutron star…