Parkes observations for project P1194 semester 2023APRS_14

Among nearly 2000 unidentified gamma-ray sources detected with the Fermi Gamma Ray Space Telescope, there are potentially many pulsars. The ultra-wide frequency coverage will enable us to detect MSPs with steep spectrum and avoid difficulties caused by interstellar scintillation and dispersive and scattering smearing. We propose to revisit highly ranked pulsar candidates that remain unidentified. Such a pilot survey will help us designing future searches of the coming 4FGL gamma-ray source catalog using the UWL. We select 11 targets and request 12 hour time in total.在费米伽马射线空间望远镜（Fermi Gamma Ray Space Telescope）探测到的近2000个未证认伽马射线源中，潜在存在大量脉冲星。凭借超宽频带覆盖能力，我们可探测到频谱陡峭的毫秒脉冲星（MSPs），同时规避星际闪烁、色散展宽与散射展宽带来的观测难题。我们提议对仍未得到证认的高优先级脉冲星候选体开展重新观测。此次试点巡天将为后续利用超宽频带系统（UWL）开展针对即将发布的4FGL伽马射线源表的搜寻工作提供参考。我们共遴选11个观测目标，并申请总计12小时的观测时长。