8 papers
Discovery of Unusual Jet Orientation Variations in the Microquasar GRS 1915+105
Xi Yan, Lang Cui, Wu Jiang +6
We report large day-timescale variations in the orientation of the southeast--northwest jet in the prototype microquasar GRS 1915+105. These results are based on three-epoch East A…
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…
Radio-X-ray Time Lags in GX 339-4: Probing Magnetic Field Transport in Black Hole Accretion
Dizhan Du, Bei You, Zhen Yan +2
We present an analysis of the time delay between the radio emission and the X-ray Compton luminosity during the 2010-2011 outburst of GX 339-4. Using the interpolated cross-correla…
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…
On the Broadening of the Characteristic Frequency Range towards Higher Photon Energies in the X-ray Variability of the Black Hole Transient MAXI J1820+070
Chenxu Gao, Wenfei Yu, Zhen Yan
Energy-dependent X-ray power spectral states and Band-Limited Noise (BLN) components have been seen in the low-hard state and intermediate states of black hole X-ray binaries. Here…
Simultaneous multi-wavelength observations of the repeating fast radio burst FRB 20190520B with Swift and FAST
Zhen Yan, Wenfei Yu, Kim L. Page +8
Among several dozen known repeating Fast radio bursts (FRBs), those precisely localized offer the best opportunities to explore their multi-wavelength counterparts, which are key t…