89 citations · 425 across the 22 of their papers we have counts for
23 papers
A physical model for radio and X-ray correlation in black hole X-ray binaries
Yiheng Jiang, Shanshan Li, Xinwu Cao +3
A tight correlation between the radio and X-ray emission in the hard state of black hole X-ray binaries (BHXRBs) indicates an intrinsic disc-jet connection in stellar black hole ac…
The delayed radio emission in the black hole X-ray binary MAXI J1348630
Bei You, Shuai-kang Yang, Zhen Yan +2
We explore the coupling between the accretion flow and the jet in black hole X-ray binary (BHXRB) MAXI J1348-630 by analyzing the X-ray and radio observations during its 2019 outbu…
Magnetically arrested disks in FR I radio galaxies
Han He, Bei You, Ning Jiang +5
A sample of 17 FR I radio galaxies constructed from the 3CR catalog, which is characterized by edge-darkened radio structures, is studied. The optical core luminosities derived fro…
An accretion disc with magnetic outflows triggered by a sudden mass accretion event in changing-look active galactic nucleus 1ES 1927+654
Xinwu Cao, Bei You, Xing Wei
1ES 1927+654 was known as a type 2 Seyfert galaxy, which exhibited drastic variability recently in ultraviolet (UV)/optical and X-ray bands. An UV/optical outburst was observed in…
Observations of a black hole X-ray binary indicate formation of a magnetically arrested disk
Bei You, Xinwu Cao, Zhen Yan +8
Accretion of material onto a black hole drags any magnetic fields present inwards, increasing their strength. Theory predicts that sufficiently strong magnetic fields can halt the…
X-ray spectral correlations in a sample of Low-mass black hole X-ray binaries in the hard state
Bei You, Yanting Dong, Zhen Yan +4
The power-law emission and reflection component provide valuable insights into the accretion process around a black hole. In this work, thanks to the broadband spectra coverage of…
Corrections to Estimated Accretion Disk Size due to Color Correction, Disk Truncation and Disk Wind
Andrzej A. Zdziarski, Bei You, Michal Szanecki
We consider three corrections to the disk sizes estimated at a given frequency using accretion models. They are due to a color correction, a disk truncation at an inner radius larg…
Insight-HXMT, NuSTAR and INTEGRAL Data Show Disk Truncation in the Hard State of the Black-Hole X-Ray Binary MAXI J1820+070
Andrzej A. Zdziarski, Bei You, Michal Szanecki +2
We study X-ray and soft gamma-ray spectra from the hard state of the accreting black-hole binary MAXI J1820+070. We perform analysis of joint spectra from HXMT, NuSTAR and INTEGRAL…
A magnetic accretion disk-outflow model for state transition in X-ray binaries
Xinwu Cao, Bei You, Zhen Yan
The hard to soft state transition of the outbursts in X-ray binaries (XRBs) is triggered by the rising of the mass accretion rate due to the disk instability. In order to explain t…
Insight-HXMT observations of jet-like corona in a black hole X-ray binary MAXI J1820+070
Bei You, Yuoli Tuo, Chengzhe Li +123
A black hole X-ray binary produces hard X-ray radiation from its corona and disk when the accreting matter heats up. During an outburst, the disk and corona co-evolves with each ot…
X-ray quasi-periodic oscillations in Lense-Thirring precession model -- II. variability of relativistic iron K line
Bei You, Piotr T. Życki, Adam Ingram +2
Reprocessing of primary X-ray emission in the accretion disk of black hole X-ray binaries (BHXRBs) produces the reflection spectrum, with the characteristic Fe K fluorescence li…
Narrow-line Seyfert 1 galaxies in the context of the Quasar Main Sequence
Bozena Czerny, Swayamtrupta Panda, Marzena Sniegowska +4
Narrow-line Seyfert 1 galaxies are defined on the basis of their line widths, and they are generally considered to be high Eddington ratio sources. But in the context of the Quasar…
Exploring the physics of the accretion and jet in nearby narrow-line Seyfert 1 galaxies
Su Yao, Erlin Qiao, Xue-Bing Wu +1
In this paper, we explore the physics of the accretion and jet in narrow-line Seyfert 1 galaxies (NLS1). Specifically, we compile a sample composed of 16 nearby NLS1 with $L_{\rm b…
X-ray quasi-periodic oscillations in Lense--Thirring precession model - I. variability of relativistic continuum
Bei You, Michal Bursa, Piotr T. Życki
We develop a Monte-Carlo code to compute the Compton scattered X-ray flux arising from a hot inner flow which undergoes Lense-Thirring precession. The hot flow intercepts seed phot…
The universal "heartbeat" oscillations in black hole systems accross the mass-scale
Qingwen Wu, Bozena Czerny, Mikolaj Grzedzielski +7
The hyperluminous X-ray source (HLX-1, the peak X-ray luminosity ) near the spiral galaxy ESO 243-49 is possibly the best candidate for intermediate ma…
The appearance of non-spherical systems. Application to LMXB
A. Rozanska, B. Beldycki, J. Madej +2
We study the appearance of the neutron star - accretion disk system as seen by a distant observer in the UV/X-ray domain. The observed intensity spectra are computed assuming non-s…
The Optical Variability of SDSS Quasars from Multi-epoch Spectroscopy. III. A Sudden UV Cutoff in Quasar SDSS J2317+0005
Hengxiao Guo, Matthew A. Malkan, Minfeng Gu +6
We have collected near-infrared to X-ray data of 20 multi-epoch heavily reddened SDSS quasars to investigate the physical mechanism of reddening. Of these, J2317+0005 is found to b…
SALT long-slit spectroscopy of HE 0435-4312: fast displacement in the Mg II emission line
J. Sredzinska, B. Czerny, K. Hryniewicz +6
The Mg II emission line is visible in the optical band for intermediate redshift quasars (0.4 < z < 1.6) and it is thus an extremely important tool to measure the black hole mass a…
The mass of the black hole in RE J1034+396
B. Czerny, B. You, A. Kurcz +6
The black hole mass measurement in active galaxies is a challenge, particularly in sources where the reverberation method cannot be applied. We aim to determine the black hole mass…
Accretion in active galactic nuclei and disk-jet coupling
Bozena Czerny, Bei You
We review the current state of understanding how accretion onto a black hole proceeds and what are they key elements needed to form relativistic jets. Since the theoretical progres…
Testing wind as an explanation for the spin problem in the continuum-fitting method
Bei You, Odele Straub, Bozena Czerny +4
The continuum-fitting method is one of the two most advanced methods of determining the black hole spin in accreting X-ray binary systems. There are, however, still some unresolved…
Constraints on black hole spins with a general relativistic accretion disk corona model
Bei You, Xinwu Cao, Ye-Fei Yuan
The peaks of the spectra of the accretion disks surrounding massive black holes in quasars are in the far-UV or soft X-ray band, which are usually not observed. However, in the dis…
A general relativistic model of accretion disks with coronae surrounding Kerr black holes
Bei You, Xinwu Cao, Ye-Fei Yuan
We calculate the structure of a standard accretion disk with corona surrounding a massive Kerr black hole in general relativistic frame, in which the corona is assumed to be heated…