Parkes observations for project P814 semester 2015OCTS_BPSR_02

During the past 6 years, we at Parkes and collaborators at other\r\nradio telescopes have been remarkably successful at discovering\r\nmillisecond pulsars (MSPs) associated with unidentified Fermi-LAT\r\ngamma-ray sources. Based on lessons learned, we here propose to\r\nextend our P814 project: thus far we have discovered 11 MSPs in\r\nrepeated 1-hour searches at 1.4 GHz of 56 unidentified LAT sources\r\nwith spectral characteristics that are consistent with those of\r\nknown pulsars. Because of interstellar scintillation, large orbital\r\nacceleration, and eclipses, it is important to search the most\r\nhighly ranked sources multiple times. Here we propose to reobserve\r\n14 high Galactic latitude unidentified Fermi sources so that we end\r\nup with four separate observations of each; and to observe four\r\ntimes each the six most highly ranked unidentified sources selected\r\nfrom the third Fermi-LAT source catalogue (3FGL) that have not yet\r\nbeen searched at Parkes. The overall time request is 61 hours on\r\nsource, or 67 hours including overheads.

过去六年间，帕克（Parkes）射电望远镜团队与其他射电望远镜的合作者，在发现与未证认费米-LAT伽马射线源相关联的毫秒脉冲星（millisecond pulsars, MSPs）领域取得了显著进展。基于此前项目积累的经验，我们在此提议扩展P814项目：截至目前，我们通过在1.4 GHz频段对56个具有已知脉冲星光谱特征的未证认LAT源开展1小时重复搜索，已发现11颗毫秒脉冲星。受星际闪烁、显著轨道加速度及掩食现象影响，对优先级最高的源开展多次观测搜索具有重要意义。在此我们提议：对14个银道面高纬度未证认费米源开展四次独立观测；同时对从第三版费米-LAT源星表（3FGL）中筛选出的6个优先级最高、尚未在帕克望远镜开展过观测的未证认源，每个也进行四次观测。本次观测的总源观测时长需求为61小时，包含系统开销在内总计67小时。