Parkes observations for project P1357 semester 2025APRS_07

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已发现多颗银河系暂现源，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（Parkes）UWL接收机对其中少量源开展的观测，已证实该设备可有效用于MeerKAT所发现暂现源的后续计时观测。MeerKAT在最新观测周期中又发现了数颗RRATs，为确定其自转周期与周期导数、并开展辐射特性研究，亟需获取这些源的高质量UWL观测数据。为此，我们申请对5颗新发现的源开展后续观测，以达成上述目标，并进一步支持对这些源的光谱与偏振特性研究。鉴于观测与理论研究均表明RRATs、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的更多共性，显著推动我们对其起源的认知。