14 citations · 55 across the 22 of their papers we have counts for
7 papers · 1 filter
Radio flares and X-ray hardening embedded in the long soft state of 4U 1543-475
Zuobin Zhang, Rob Fender, Jiachen Jiang +14
We present a comprehensive multi-wavelength study of the black hole X-ray binary 4U 1543-475 during its 2021 outburst, focusing on radio flaring episodes that are commonly interpre…
Dense, multi-phase accretion disk atmosphere in the low-luminosity state of black hole transientV4641 Sgr
Zuobin Zhang, Rob Fender, James H. Matthews +11
We present soft X-ray spectroscopy of the black-hole X-ray binary V4641~Sgr with the \textit{XMM-Newton} Reflection Grating Spectrometer (RGS). The RGS spectrum shows narrow emissi…
A clean broad iron line in GS 1354--64 as seen by XRISM
Honghui Liu, Lingda Kong, Oluwashina K. Adegoke +13
We present a spectroscopic analysis of XRISM and NuSTAR observations of the black hole X-ray binary GS~1354--64 during its 2026 outburst. A total number of 3.5 million photons are…
Modeling X-ray reflection spectra from disk returning radiation: Application to 4U 1630-47
Kostas Kourmpetis, Shafqat Riaz, Honghui Liu +6
Returning radiation is thought to play a key role in disk illumination of black-hole X-ray binaries in the high-soft state, yet it has not been fully incorporated into XSPEC reflec…
Evidence of mutually exclusive outflow forms from a black hole X-ray binary
Zuobin Zhang, Jiachen Jiang, Francesco Carotenuto +13
Accretion onto black holes often leads to the launch of outflows that significantly influence their surrounding environments. The two primary forms of these outflows are X-ray disk…
Decoding Cygnus X-2: The Critical Role of Reflection in IXPE Data
Honghui Liu, Jiachen Jiang, Adam Ingram +10
We present a spectro-polarimetric re-analysis of the first IXPE observation of Cygnus X-2 which we determine to be mainly in the normal branch, from quasi-simultaneous observations…
Searching for Isolated Black Hole Candidates within 15 pc of the Solar System in Gaia DR3
Abdurakhmon Nosirov, Cosimo Bambi, Leda Gao +4
Theoretical models predict that the Galaxy hosts - black holes formed from the complete gravitational collapse of heavy stars and that most of these black holes are iso…