Parkes observations for project P1226 semester 2023OCTS_01

Fast Radio Bursts(FRBs) are often proposed as useful cosmological probes, however much work is needed to better understand the foreground environment that it propgates through, such as the Galactic ISM and Milky Way Halo. We propose to observe three satellite dwarf spheroidal galaxies of the Milky Way to search for FRBs and pulsars. We plan to take advantage of the new CryoPAF's wide field of view to survey high stellar density dwarf satellite galaxies with substantial angular sizes: Fornax, Sculptor and Sagittarius II. Detections of FRBs and pulsars will allow us to measure the Circumgalactic Medium contribution to FRB dispersion and also the dark matter halos of these dwarf galaxies.

快速射电暴（Fast Radio Bursts, FRBs）常被视为极具应用价值的宇宙学探针，但目前仍需开展大量研究以更好地理解其传播路径上的前景环境，例如银河系星际介质（Galactic ISM）与银河系晕。本研究计划对银河系的3颗卫星矮球状星系开展观测，以搜寻快速射电暴与脉冲星。我们拟利用新型CryoPAF的大视场特性，对具有较大角尺寸且恒星密度较高的矮卫星星系展开巡天观测，目标天体包括天炉座矮星系、玉夫座矮星系与人马座II矮星系。若能成功探测到快速射电暴与脉冲星，将可帮助我们测算星系周介质对快速射电暴色散的贡献，以及这些矮星系的暗物质晕特性。