The black hole MAXI J1820+070 was discovered during its 2018 outburst and was extensively monitored across the electromagnetic spectrum. Following the detection of relativistic radio jets, we obtained four Chandra X-ray observations taken between 2018 November and 2019 June, along with radio observations conducted with the Very Large Array and MeerKAT arrays. We report the discovery of X-ray sources associated with the radio jets moving at relativistic velocities with a possible deceleration at late times. The broadband spectra of the jets are consistent with synchrotron radiation from particles accelerated up to very high energies (>10 TeV) by shocks produced by the jets interacting with the interstellar medium. The minimal internal energy estimated from the X-ray observations for the jets is ∼10 41 erg, significantly larger than the energy calculated from the radio flare alone, suggesting most of the energy is possibly not radiated at small scales but released thr...

中文翻译：

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黑洞X射线二进制MAXI J1820 + 070的相对论X射线射流

黑洞MAXI J1820 + 070在其2018年爆发期间被发现，并在电磁频谱中受到了广泛监控。在检测到相对论无线电射流之后，我们获得了2018年11月至2019年6月之间进行的四次Chandra X射线观测以及使用甚大型阵列和MeerKAT阵列进行的无线电观测。我们报告了与相对论速度运动的射流相关的X射线源的发现，并可能在后期减速。射流的宽带光谱与通过与星际介质相互作用的射流产生的冲击而加速至很高能量（> 10 TeV）的粒子的同步加速器辐射一致。根据X射线观测得出的射流，其最小内部能量约为10 41 erg，