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The Disk Veiling Effect of the Black Hole Low-Mass X-ray Binary A0620-00
Wan-Min Zheng, Qiaoya Wu, Jianfeng Wu +15
The optical light curves of quiescent black hole low-mass X-ray binaries often exhibit significant non-ellipsoidal variabilities, showing the photospheric radiation of the companio…
Estimating the spin of the black hole candidate MAXI J1659-152 with the X-ray continuum-fitting method
Ye Feng, Xueshan Zhao, Lijun Gou +6
As a transient X-ray binary, MAXI J1659-152 contains a black hole candidate as its compact star. MAXI J1659-152 was discovered on 2010 September 25 during its only known outburst.…
Torque reversal and orbital profile of X-ray pulsar OAO 1657-415
Zhenxuan Liao, Jiren Liu, Peter A. Jenke +1
OAO 1657-415 is an atypical supergiant X-ray binary among wind-fed and disk-fed systems, showing alternate spin-up/spin-down intervals lasting on the order of tens of days. We stud…
The Spin of New Black Hole Candidate: MAXI J1803-298 Observed by NuSTAR and NICER
Ye Feng, Xueshan Zhao, Yufeng Li +4
MAXI J1803-298, a newly-discovered Galactic transient and black hole candidate, was first detected by \emph{MAXI}/GSC on May 1st, 2021. In this paper, we present a detailed spectra…
Spectral Analysis of New Black Hole Candidate AT2019wey Observed by NuSTAR
Ye Feng, Xueshan Zhao, Lijun Gou +7
AT2019wey is a new galactic X-ray binary that was first discovered as an optical transient by the Australia Telescope Large Area Survey (ATLAS) on December 7, 2019. AT2019wey consi…
Re-estimating the Spin Parameter of the Black Hole in Cygnus X-1
Xueshan Zhao, Lijun Gou, Yanting Dong +6
Cygnus X-1 is a well-studied persistent black hole X-ray binary. Recently, the three parameters needed to estimate the black hole spin of this system, namely the black hole mass $M…