H1429-0028 hydroxyl megamaser spectral line data cube

MeerKAT observed Spectral-line data cube conducted using a Briggs weighting scheme with robust = 0.5. The observations of this data cube were carried out in the 32k channel mode, spanning two 6-hour tracks, each with approximately 5 hours of on-source integration time. However, for this study, only one of the two tracks was utilised as we were unable to calibrate track 1 to comparable quality due to a combination of RFI, solar interface and overall data quality. Each observation was centred at 816 MHz with a bandwidth of 544 MHz.

本数据集为MeerKAT射电望远镜观测得到、采用鲁棒值（robust）为0.5的Briggs加权方案（Briggs weighting scheme）处理的谱线数据立方体（spectral-line data cube）。该数据立方体的观测采用32k通道模式开展，包含两段时长6小时的观测轨，每段的源上积分时间约为5小时。但本研究仅使用了其中一段观测轨：由于射频干扰（Radio Frequency Interference, RFI）、太阳界面干扰（solar interface）以及整体数据质量问题，无法将第一段观测轨校准至可与另一段媲美的质量水平，因此仅选用了两段观测轨中的一段。单次观测的中心频率为816 MHz，带宽为544 MHz。