论文标题
黑洞X射线二进制Maxi J1348 $ - $ 630静止
The black hole X-ray binary MAXI J1348$-$630 in quiescence
论文作者
论文摘要
静态黑洞低质量X射线二进制（BH LMXB）中磁盘/喷气耦合的性能仍然很大未知。在本文中，我们介绍了BH LMXB Maxi J1348 $ - 630美元的第一个准模拟无线电和X射线检测，众所周知，它显示了依赖于积聚率的混合磁盘/喷气连接。我们使用钱德拉X射线天文台和澳大利亚望远镜紧凑型阵列进行了深X射线和无线电观测。 Maxi J1348 $ - $ 630在X射线光度$ l _ {\ rm x} =（7.5 \ pm 2.9）\ times 10^{30}（d/2.2 \ {\ rm kpc}） BH LMXB，可能意味着系统短期轨道时期。 Maxi J1348 $ - $ 630也在广播中以$ l _ {\ rm r} =（4.3 \ pm 0.9）\ times 10^{26}（d/2.2 \ {\ rm kpc}）^2 $ erg S $^{ - 1} $。这些检测使我们能够在静止的无线电/X射线图上限制Maxi J1348 $ - $ 630的位置，发现源属于此阶段的标准（Radio-Loud）轨道。这提供了一个有力的确认，即混合相关源在低亮度和静止下遵循标准轨道，从而提高了我们对BH LMXBS中磁盘/射流连接的了解。
The properties of the disk/jet coupling in quiescent black hole low mass X-ray binaries (BH LMXBs) are still largely unknown. In this paper we present the first quasi-simultaneous radio and X-ray detection in quiescence of the BH LMXB MAXI J1348$-$630, which is known to display a hybrid disk/jet connection that depends on the accretion rate. We performed deep X-ray and radio observations using the Chandra X-ray Observatory and the Australia Telescope Compact Array. MAXI J1348$-$630 is detected for the first time in quiescence at an X-ray luminosity $L_{\rm X} = (7.5 \pm 2.9) \times 10^{30} (D/2.2 \ {\rm kpc})^2$ erg s$^{-1}$: one of the lowest X-ray luminosities observed for a quiescent BH LMXB, possibly implying a short orbital period for the system. MAXI J1348$-$630 is also detected in radio at $L_{\rm R} = (4.3 \pm 0.9) \times 10^{26} (D/2.2 \ {\rm kpc})^2$ erg s$^{-1}$. These detections allow us to constrain the location of MAXI J1348$-$630 on the radio/X-ray diagram in quiescence, finding that the source belongs to the standard (radio-loud) track in this phase. This provides a strong confirmation that hybrid-correlation sources follow the standard track at low luminosities and down to quiescence, thus improving our knowledge of the disk/jet connection in BH LMXBs.
