329 citations · 900 across the 19 of their papers we have counts for
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Coronal properties of black hole X-ray binaries in the hard state as seen by NuSTAR and Swift
Zhen Yan, Fu-guo Xie, Wenda Zhang
In this work, we measure two important phenomenological parameters of corona (and hot accretion flow) in black hole X-ray binaries: the photon index and the electron temperatur…
Role of Coherent Eddies in Potential Vorticity Transport in Two-layer Quasigeostrophic Turbulence
Wenda Zhang, Christopher L. P. Wolfe, Ryan Abernathey
The transport by materially coherent eddies is studied in a two-layer quasigeostrophic model of geophysical turbulence. The coherent eddies are identified by closed contours of the…
Probing the Bardeen-Petterson effect in tidal disruption events with spectral line reverberation mapping
Wenda Zhang, Wenfei Yu, Vladimír Karas +1
For an inclined accretion flow around a rotating black hole, the combined effect of the Lense-Thirring precession and viscous torque tends to align the inner part of the flow with…
The X-ray Polarization Probe mission concept
Keith Jahoda, Henric Krawczynski, Fabian Kislat +100
The X-ray Polarization Probe (XPP) is a second generation X-ray polarimeter following up on the Imaging X-ray Polarimetry Explorer (IXPE). The XPP will offer true broadband polarim…
Constraining the size of the corona with fully relativistic calculations of spectra of extended corona. I - the Monte Carlo radiative transfer code
Wenda Zhang, Michal Dovčiak, Michal Bursa
The size and geometry of the X-ray emitting corona in AGNs are still not well constrained. Dovčiak & Done (2016) proposed a method based on calculations assuming a point-like lamp-…
Polarimetry and strong gravity effects from spots orbiting near a black hole
Vladimir Karas, Michal Dovciak, Jiri Svoboda +4
We study the modulation of the observed radiation flux and the associated changes in the polarization degree and angle that are predicted by the orbiting spot model for flares from…