164 citations · 769 across the 19 of their papers we have counts for
17 papers · 1 filter
Harmonic brightness oscillations point to magnetar giant flares in rare short gamma-ray bursts
Run-Chao Chen, Ore Gottlieb, Bin-Bin Zhang +5
Kilohertz quasi-periodic oscillations (QPOs) have been observed in a few rare gamma-ray bursts (GRBs), but their physical origin remains uncertain. We reanalyze the two short GRBs…
SN 2025fhm: A central-engine powered Ic-BL supernova associated with X-ray transient EP250304a
Cui-Ying Song, Nan Jiang, Xiaofeng Wang +32
We present X-ray, optical, and radio follow-up observations of EP250304a, an extragalactic fast X-ray transient (EFXT) discovered by the Einstein Probe. Its X-ray light curve exhib…
X-rays breaking out of pre-explosion ejecta mark a supernova's first light
Weimin Yuan, Qiu-Ju Huang, Jin-Ping Zhu +130
Massive stars die as core-collapse supernovae, whose optical light emerges days after the implosion. Theory predicts that the initial collapse-driven shock, upon breaking through t…
Short Spike, Long Story: Episode-Dependent Shifts of Long-Duration Type-I GRBs on -- Plane
Ya-Hui Jiang, Run-Chao Chen, Zhen-Yu Yan +3
Observations of peculiar GRBs have challenged the traditional -based classification, demonstrating that duration does not map uniquely onto progenitor type. A striking clas…
A 4.5-s Quasiperiodic Spectral Oscillation in GRB 230307A: Evidence for Free Precession of a Post-Merger Magnetar?
Run-Chao Chen, Jun Yang, Bin-Bin Zhang +4
Millisecond magnetars, rapidly rotating neutron stars with ultra-strong magnetic fields, have long been proposed as central engines of gamma-ray bursts (GRBs). For GRBs produced by…
Jet-Structure Imprint on the Curvature Tail of Gamma-Ray Burst Prompt Emission
Zhen-Yu Yan, Xiao-Hong Zhao, Hendrik J. van Eerten +7
Even though the prompt emission of gamma-ray bursts (GRBs) is highly beamed, high-latitude emission still produces a distinct light curve break after the intrinsic emission ceases…
Detection of a Millisecond Periodicity in BATSE Short Gamma-Ray Bursts
Run-Chao Chen, Jun Yang, Yi-Han Iris Yin +1
Coherent oscillations at kilohertz frequencies have recently been detected in a small number of gamma-ray bursts (GRBs), suggesting quasi-periodic dynamics in their central engines…
Minutes-long soft X-ray prompt emission from a compact object merger
An Li, Chen-Wei Wang, Niccolò Passaleva +75
Compact object mergers are multi-messenger sources and known progenitors of some gamma-ray bursts, bright flashes of high-energy radiation powered by a central engine, either an ac…
Spectral Hardening Reveals Afterglow Emergence in Long-Duration Fast X-ray Transients: A Case Study of GRB 250404A/EP250404a
Yi-Han Iris Yin, Yuan Fang, Bin-Bin Zhang +56
The prompt emission and afterglow phases of gamma-ray bursts (GRBs) have been extensively studied, yet the transition between these two phases remains inadequately characterized du…
EP240801a/XRF 240801B: An X-ray Flash Detected by the Einstein Probe and Implications of its Multiband Afterglow
Shuai-Qing Jiang, Dong Xu, Agnes P. C. van Hoof +89
We present multiband observations and analysis of EP240801a, a low-energy, extremely soft gamma-ray burst (GRB) discovered on August 1, 2024 by the Einstein Probe (EP) satellite, w…
GTC optical/NIR upper limits and NICER X-ray analysis of SGR J1935+2154 for the outburst in 2022
Yi-Xuan Shao, Ping Zhou, Xiang-Dong Li +8
The Galactic magnetar SGR J1935+2154 has undergone another outburst since 2022 October 10. We present the results of searching for an optical/NIR counterpart of SGR J1935+2154 befo…
Triggering the Untriggered: The First Einstein Probe-Detected Gamma-Ray Burst 240219A and Its Implications
Yi-Han Iris Yin, Bin-Bin Zhang, Jun Yang +49
The Einstein Probe (EP) achieved its first detection and localization of a bright X-ray flare, EP240219a, on 2024 February 19, during its commissioning phase. Subsequent targeted s…
Kilonova Luminosity Function Constraints based on Zwicky Transient Facility Searches for 13 Neutron Star Mergers
Mansi M. Kasliwal, Shreya Anand, Tomas Ahumada +100
We present a systematic search for optical counterparts to 13 gravitational wave (GW) triggers involving at least one neutron star during LIGO/Virgo's third observing run. We searc…
Modeling the observations of GRB 180720B: From radio to sub-TeV gamma-rays
N. Fraija, S. Dichiara, A. C. Caligula do E. S. Pedreira +6
Early and late multiwavelength observations play an important role in determining the nature of the progenitor, circumburst medium, physical processes and emitting regions associat…
The afterglow and kilonova of the short GRB 160821B
E. Troja, A. J. Castro-Tirado, J. Becerra Gonzalez +22
GRB 160821B is a short duration gamma-ray burst (GRB) detected and localized by the Neil Gehrels Swift Observatory in the outskirts of a spiral galaxy at z=0.1613, at a projected p…
Theoretical Description Of GRB 160625B with Wind-to-ISM Transition and Implications for a Magnetized Outflow
N. Fraija, P. Veres, B. B. Zhang +7
GRB 160625B, one of the brightest bursts in recent years, was simultaneously observed by Fermi and Swift satellites, and ground-based optical telescopes in three different events s…
The "amplitude" parameter of Gamma-Ray Bursts and its implications for GRB classification
Hou-Jun Lü, Bing Zhang, En-Wei Liang +2
Traditionally gamma-ray bursts (GRBs) are classified in the -hardness ratio two-dimensional plane into long/soft and short/hard GRBs. In this paper, we suggest to add the "…