A wide star–black-hole binary system from radial-velocity measurements

@article{Liu2019AWS,
  title={A wide star–black-hole binary system from radial-velocity measurements},
  author={Jifeng Liu and Haotong Zhang and Andrew W. Howard and Zhongrui Bai and Youjun Lu and Roberto Soria and Stephen Justham and Xiangdong Li and Zheng Zheng and Tinggui Wang and Krzysztof Belczyński and Jorge Casares and Wei Zhang and Hailong Yuan and Yi-Ze Dong and Yajuan Lei and Howard T. Isaacson and Song-Yun Wang and Yu Bai and Yong Shao and Qi Gao and Yilun Wang and Zexi Niu and Kai-Ming Cui and Chuanjie Zheng and Xiaoyong Mu and Lan Zhang and Wenping Wang and Alexander Heger and Zhao-xiang Qi and Shi-long Liao and Mario Gilberto Lattanzi and Wei-Min Gu and Junfeng Wang and Jianfeng Wu and Lijing Shao and Rongfeng Shen and Xiaofeng Wang and Joel N. Bregman and Rosanne Di Stefano and Qing-zhong Liu and Zhan-wen Han and Tian-meng Zhang and Huijuan Wang and Juan-juan Ren and Junbo Zhang and Jujia Zhang and Xiao-Li Wang and Antonio Cabrera-Lavers and Romano L. M. Corradi and Rafael Rebolo and Yongheng Zhao and Gang Zhao and Yao-quan Chu and Xiang-qun Cui},
  journal={Nature},
  year={2019},
  volume={575},
  pages={618 - 621}
}
All stellar-mass black holes have hitherto been identified by X-rays emitted from gas that is accreting onto the black hole from a companion star. These systems are all binaries with a black-hole mass that is less than 30 times that of the Sun1–4. Theory predicts, however, that X-ray-emitting systems form a minority of the total population of star–black-hole binaries5,6. When the black hole is not accreting gas, it can be found through radial-velocity measurements of the motion of the companion… Expand

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References

SHOWING 1-10 OF 98 REFERENCES
A Be-type star with a black-hole companion
TLDR
Observations of an accretion disk line mirroring the orbit of MWC 656, the candidate counterpart of the γ-ray source AGL J2241+4454, indicates that a black hole of 3.8 to 6.9 solar masses orbits the star, implying that Be binaries with black-hole companions are difficult to detect in conventional X-ray surveys. Expand
Forming short-period Wolf–Rayet X-ray binaries and double black holes through stable mass transfer
We show that black hole high-mass X-ray binaries (HMXBs) with O- orB-type donor stars and relatively short orbital periods, of order oneweek to several months may survive spiral-in, to then formExpand
A census of low mass black hole binaries
The six known low mass black hole binaries discovered as X-ray/Optical novae represent a relatively uniform source class. It is shown that the recurrence time for outbursts from these sources can beExpand
The X-Ray Spectral Evolution of Galactic Black Hole X-Ray Binaries toward Quiescence
Most transient black hole X-ray binaries (BHXBs) spend the bulk of their time in a quiescent state, where they accrete matter from their companion star at highly sub-Eddington luminosities (we defineExpand
ON THE APPARENT LACK OF Be X-RAY BINARIES WITH BLACK HOLES
In our Galaxy there are 64 Be X-ray binaries known to date. Out of these, 42 host a neutron star (NS), and for the remainder the nature of the companion is unknown. None, so far, are known to host aExpand
On IC 10 X-1, the Most Massive Known Stellar-Mass Black Hole
IC 10 X-1 is a variable X-ray source in the Local Group starburst galaxy IC 10 whose optical counterpart is a Wolf-Rayet (WR) star. Prestwich and coworkers recently proposed that it contains the mostExpand
The mass of the black hole in the X-ray binary M33 X-7 and the evolutionary status of M33 X-7 and IC 10 X-1
We have analyzed the observed radial-velocity curve for the X-ray binary M33 X-7 in a Roche model. We have analyzed the dependence between the component masses and the degree of filling of theExpand
On the lack of thermal emission from the quiescent black hole XTE J1118+480: Evidence for the event horizon
A soft component of thermal emission is very commonly observed from the surfaces of quiescent, accreting neutron stars. We searched with Chandra for such a surface component of emission from theExpand
AMUSE-VIRGO. II. DOWN-SIZING IN BLACK HOLE ACCRETION
We complete the census of nuclear X-ray activity in 100 early-type Virgo galaxies observed by the Chandra X-ray Telescope as part of the AMUSE-Virgo survey, down to a (3σ ) limiting luminosity of 3.7Expand
ON THE MAXIMUM MASS OF STELLAR BLACK HOLES
We present the spectrum of compact object masses: neutron stars and black holes (BHs) that originate from single stars in different environments. In particular, we calculate the dependence of maximumExpand
...
1
2
3
4
5
...