Parkes observations for project P1357 semester 2025APRS_01

MeerKAT has already discovered a number of Galactic transients, which are most likely to be Rotating Radio Transients (RRATs). Previous observations of a few of these sources with the Parkes UWL receiver have proven its utility in follow-up timing observations of MeerKAT discoveries.\n MeerKAT has discovered a few more RRATs in its latest observing cycle and more good quality UWL observations of these sources are required to determine the rotational period and period derivative and also to facilitate the study of their emission properties. Therefore, we request follow-up observations of 5 new sources to achieve this and to further enable spectral and polarization studies of these sources. Given the potential link between RRATs, magnetars, and some fast radio bursts (FRBs) suggested by both observations and theories, this study could reveal more similarities between these different classes of transient sources and significantly advance our understanding of their origins.

MeerKAT望远镜已发现多例银河系暂现源，其中极大概率为旋转射电暂现源（Rotating Radio Transients, RRATs）。此前利用帕克斯UWL接收机（Parkes UWL receiver）对其中少量源开展的观测，已证实该设备可有效用于MeerKAT所发现源的后续计时观测。
MeerKAT在最新观测周期中又发现了数例旋转射电暂现源，当前亟需获取更高质量的UWL观测数据，以测定其自转周期与周期导数，同时助力其发射特性的相关研究。为此，我们申请对5个新发现的源开展后续观测，以达成上述目标，并进一步支撑这些源的光谱与偏振研究。鉴于观测与理论研究均提示旋转射电暂现源、磁星与部分快速射电暴（fast radio bursts, FRBs）之间存在潜在关联，本研究可揭示这类不同暂现源类群间更多的共性特征，大幅加深我们对其起源的认知。