Parkes observations for project P1090 semester 2020OCTS_07

We propose to search for millisecond pulsars (MSPs) in an annular region around Blazar OJ 287, the most promising candidate to host a nano-Hz gravitational wave (GW) emitting supermassive black hole binary (SMBHB). We plan to use the Parkes multibeam receiver to search for MSPs in the sky region around OJ 287. The proposed survey area of 143 square degrees is expected to yield at least one and possibly three MSPs. The observing strategy ensures that detected MSPs will be most sensitive to GWs from the proposed SMBHB in OJ 287. The timing of such MPSs should allow us to probe the properties of OJ 287 in the GW window.

本研究拟在耀变体（Blazar）OJ 287周围的环形天区搜寻毫秒脉冲星（millisecond pulsars, MSPs）；OJ 287是当前最具潜力的宿主天体，其拥有可辐射纳赫兹引力波（nano-Hz gravitational wave, GW）的超大质量黑洞双星（supermassive black hole binary, SMBHB）。我们计划采用帕克斯多波束接收机（Parkes multibeam receiver），对OJ 287周边天区的毫秒脉冲星开展搜寻工作。本次拟开展的巡天面积为143平方度，预计至少可探测到1颗，甚至可能找到3颗毫秒脉冲星。该观测策略可确保所探测到的毫秒脉冲星，对OJ 287内拟研究的超大质量黑洞双星所辐射的引力波具备最高灵敏度。对这类毫秒脉冲星开展计时观测，将使我们得以通过引力波窗口探究OJ 287的相关特性。