194 citations · 1.1k across the 29 of their papers we have counts for
29 papers
A Giant Peanut-shaped Ultra-High-Energy Gamma-Ray Emitter Off the Galactic Plane
Zhen Cao, Felix Aharonian, Yunxiang Bai +312
Ultra-high-energy (UHE), exceeding 100 TeV (10^12 electronvolts), γ-rays manifests extreme particle acceleration in astrophysical sources. Recent observations by γ-ray telescopes,…
Optimization of performance of the KM2A full array using the Crab Nebula
LHAASO collaboration
The full array of the Large High Altitude Air Shower Observatory (LHAASO) has been in operation since July 2021. For its kilometer-square array (KM2A), we have optimized the select…
Rotation measure variations in Galactic Centre pulsars
F. Abbate, A. Noutsos, G. Desvignes +8
We report the results of an observational campaign using the Effelsberg 100-m telescope of the pulsars J17462849, J17462850, J17462856 and J17452912 located in the Cent…
Synchrotron Radiation Dominates the Extremely Bright GRB 221009A
Jun Yang, Xiao-Hong Zhao, Zhenyu Yan +30
The brightest Gamma-ray burst, GRB 221009A, has spurred numerous theoretical investigations, with particular attention paid to the origins of ultra-high energy TeV photons during t…
A Tight Three-parameter Correlation and Related Classification on Gamma-Ray Bursts
Shuai Zhang, Lang Shao, Bin-Bin Zhang +4
Gamma-ray bursts (GRBs) are widely believed to be from massive collapsars and/or compact binary mergers, which accordingly, would generate long and short GRBs, respectively. The de…
Periodicity Search on X-ray Bursts of SGR J1935+2154 Using 8.5 yr of Fermi/GBM Data
Jin-Hang Zou, Bin-Bin Zhang, Guo-Qiang Zhang +3
We performed a systematic search for X-ray bursts of the SGR J1935+2154 using the Fermi Gamma-ray Burst Monitor continuous data dated from Jan 2013 to October 2021. Eight bursting…
GRB 200415A: A Short Gamma-Ray Burst from a Magnetar Giant Flare?
Jun Yang, Vikas Chand, Bin-Bin Zhang +16
The giant flares of soft gamma-ray repeaters (SGRs) have long been proposed to contribute to at least a subsample of the observed short gamma-ray bursts (GRBs). In this paper, we p…
Magnetar Giant Flare Originated GRB 200415A: Transient GeV emission, Time-Resolved Correlation, and Implications
Vikas Chand, Jagdish C. Joshi, Rahul Gupta +12
Giant flares (GFs) are unusual bursts from soft gamma-ray repeaters (SGRs) that release an enormous amount of energy in a fraction of a second. The afterglow emission of these SGR-…
No pulsed radio emission during a bursting phase of a Galactic magnetar
L. Lin, C. F. Zhang, P. Wang +45
Fast radio bursts (FRBs) are mysterious millisecond-duration radio transients of unknown origin observed at extragalactic distances. It has been long speculated that magnetars are…
Multimessenger Tests of Einstein's Weak Equivalence Principle and Lorentz Invariance with a High-energy Neutrino from a Flaring Blazar
Jun-Jie Wei, Bin-Bin Zhang, Lang Shao +7
The detection of the high-energy ( TeV) neutrino coincident with the flaring blazar TXS 0506+056, the first and only neutrino-source association to date, provides new…
A Large Catalogue of Multi-wavelength GRB Afterglows I: Color Evolution And Its Physical Implication
Liang Li, Yu Wang, Lang Shao +5
The spectrum of gamma-ray burst (GRB) afterglows can be studied with color indices. Here we present a large comprehensive catalogue of 70 GRBs with multi-wavelength optical transie…
A peculiar low-luminosity short gamma-ray burst from a double neutron star merger progenitor
B. -B. Zhang, B. Zhang, H. Sun +15
Double neutron star (DNS) merger events are promosing candidates of short Gamma-ray Burst (sGRB) progenitors as well as high-frequecy gravitational wave (GW) emitters. On August 17…
Constraining Anisotropic Lorentz Violation via the Spectral-Lag Transition of GRB 160625B
Jun-Jie Wei, Xue-Feng Wu, Bin-Bin Zhang +3
Violations of Lorentz invariance can lead to an energy-dependent vacuum dispersion of light, which results in arrival-time differences of photons arising with different energies fr…
A New Test of Lorentz Invariance Violation: the Spectral Lag Transition of GRB 160625B
Jun-Jie Wei, Bin-Bin Zhang, Lang Shao +2
Possible violations of Lorentz invariance (LIV) have been investigated for a long time using the observed spectral lags of gamma-ray bursts (GRBs). However, these generally have re…
A New Measurement of the Spectral Lag of Gamma-Ray Bursts and its Implications for Spectral Evolution Behaviors
Lang Shao, Bin-Bin Zhang, Fu-Ri Wang +9
We carry out a systematical study of the spectral lag properties of 50 single-pulsed Gamma-Ray Bursts (GRBs) detected by Fermi/GBM. By dividing the light curves into multiple conse…
The second closest gamma-ray burst: sub-luminous GRB 111005A with no supernova in a super-solar metallicity environment
Michał J. Michałowski, Dong Xu, Jamie Stevens +17
We report the detection of the radio afterglow of a long gamma-ray burst (GRB) 111005A at 5-345 GHz, including the very long baseline interferometry observations with the positiona…
On the Late-Time Spectral Softening Found in X-ray Afterglows of Gamma-Ray Bursts
Yuan-Zhu Wang, Yinan Zhao, Lang Shao +2
Strong spectral softening has been revealed in the late X-ray afterglows of some gamma-ray bursts (GRBs). The scenario of X-ray scattering around circum-burst dusty medium has been…
Spectral Softening in X-ray Afterglow of GRB 130925A as Predicted by Dust Scattering Model
Yi-Nan Zhao, Lang Shao
Gamma-ray bursts (GRBs) usually occurs in a dense star-forming region with massive circum-burst medium. The small-angle scattering of intense prompt X-ray emission off the surround…
On the Puzzle of Long and Short Gamma-Ray Bursts
Lang Shao, Fu-Wen Zhang, Zi-Gao Dai +3
In this paper we give a brief review of our recent studies on the long and short gamma-ray bursts (GRBs) detected Swift, in an effort to understand the puzzle of classifying GRBs.…
GRB 131231A: Implications of the GeV emission
Bin Liu, Wei Chen, Yun-Feng Liang +7
GRB 131231A was detected by the Large Area Telescope onboard Fermi Space Gamma-ray Telescope. The high energy gamma-ray ( MeV) afterglow emission spectrum is $F_ν\propto ν^{…
Cosmological Time Dilation in Durations of Swift Long Gamma-Ray Bursts
Fu-Wen Zhang, Yi-Zhong Fan, Lang Shao +1
Cosmological time dilation is a fundamental phenomenon in an expanding universe, which stresses that both the duration and wavelength of the emitted light from a distant object at…
The study of s-process nucleosynthesis based on barium stars, CEMP-s and CEMP-r/s stars
Wenyuan Cui, Jianrong Shi, Yuanyuan Geng +4
In order to get a broader view of the s-process nucleosynthesis we study the abundance distribution of heavy elements of 35 barium stars and 24 CEMP-stars, including nine CEMP-s st…
Revisiting the Long/Soft-Short/Hard Classification of Gamma-Ray Bursts in the Fermi Era
Fu-Wen Zhang, Lang Shao, Jing-Zhi Yan +1
We perform a statistical analysis of the temporal and spectral properties of the latest Fermi gamma-ray bursts (GRBs) to revisit the classification of GRBs. We find that the bimoda…
Effect of Dust Extinction on Gamma-ray Burst Afterglows
Gu-Jing Lv, Lang Shao, Zhi-Ping Jin +1
In order to study the effect of dust extinction on the afterglow of gamma-ray bursts (GRBs), we carry out numerical calculations with high precision based on rigorous Mie theory an…