标题： 射电耀斑和新候选黑洞X射线双星MAXI J1631-472的射电明亮/安静双态行为 显示英文标题

标题： Radio flaring and dual radio loud/quiet behaviour in the new candidate black hole X-ray binary MAXI J1631-472

摘要： 我们展示了使用 MeerKAT 射电干涉仪、Neil Gehrels Swift 观测台和 Monitor of All-sky X-ray Image (MAXI) 仪器，在其 2018-2019 活动期间对新的黑洞候选者 X 射线双星 MAXI J1631-472 进行的每周监测结果。 该源表现出多种 X 射线状态，特别是高光度和低光度硬态之间被扩展的软态所包围。 在从硬/中间态向软态过渡后不久观察到射电爆发。 这与现有的经验模型大致一致，但其持续时间较长表明可能存在多个未解决的爆发和/或喷流-星际介质相互作用。 在硬态射电:X 射线平面上，该源在高光度时显示出“射电安静”，但在较低光度时重新加入“标准”轨迹，这是一种越来越常见的行为模式。 显示英文摘要

摘要： We present the results of a weekly monitoring of the new black hole candidate X-ray binary MAXI J1631-472 carried out with the MeerKAT radio interferometer, the Neil Gehrels Swift Observatory, and the Monitor of All-sky X-ray Image (MAXI) instrument, during its 2018-2019 outburst. The source exhibits a number of X-ray states, in particular both high- and low-luminosity hard states bracketed by extended soft states. Radio flaring is observed shortly after a transition from hard/intermediate states to the soft state. This is broadly in agreement with existing empirical models, but its extended duration hints at multiple unresolved flares and/or jet-ISM interactions. In the hard state radio:X-ray plane, the source is revealed to be 'radio quiet' at high luminosities, but to rejoin the `standard' track at lower luminosities, an increasingly commonly-observed pattern of behaviour.