Parkes observations for project P1134 semester 2021OCTS_01

We propose timing and broadband follow-up observations of an intermittent pulsar candidate that has emerged from our ongoing processing of the SMART survey data. Initial analysis suggests the possibility of it being either an extreme nuller, or possibly an intermittent (state-switching) pulsar, of which only a handful are currently known. These rare type of pulsars continue to pose challenges in our quest to uncover the elusive emission mechanism. The proposed observations will help further elucidate the intermittent nature and its frequency dependence, and will allow us to determine the pulsar's spin and astrometric parameters via regular timing observations. We will also undertake polarimetric analysis to further explore the emission properties, and to determine the pulsar's emission geometry.

我们拟对一颗候选间歇脉冲星（intermittent pulsar candidate）开展计时与宽频后续观测，该源源自我们对SMART巡天（SMART survey）数据的持续处理工作。初步分析表明，该源可能为极端消隐脉冲星（extreme nuller），或是间歇型（状态切换型，state-switching pulsar）脉冲星——目前已知的此类天体仅寥寥数例。这类罕见的脉冲星始终是我们探索其难以捉摸的辐射机制时所面临的挑战。本次观测计划将有助于进一步阐明其间歇特性及其频率依赖性，并通过常规计时观测确定该脉冲星的自转参数（spin parameters）与天体测量参数（astrometric parameters）。此外，我们还将开展偏振分析（polarimetric analysis），以深入探究其辐射特性，并确定该脉冲星的辐射几何结构。