Parkes observations for project P1194 semester 2023APRS_16

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。本研究借助超宽频覆盖范围，能够实现对陡谱毫秒脉冲星（MSPs, millisecond pulsars）的探测，并规避星际闪烁、色散与散射展宽带来的观测难题。本研究拟对已筛选出的高优先级待证认脉冲星候选体开展回溯观测。此类先导巡天将为后续利用超宽频（UWL）对即将发布的4FGL伽马射线源目录开展搜寻工作提供重要参考。本方案选取11个观测目标，总计申请12小时的观测时长。