Parkes observations for project P1207 semester 2024APRS_10

The question of whether there exists a substantial population of pulsars, particularly millisecond pulsars, within the Galactic Bulge, has been a longstanding enigma. In a recent survey conducted toward the Bulge region using the Five-hundred-meter Aperture Spherical Telescope (FAST), we discovered 12 pulsar candidates. Notably, four bright pulsar candidates, estimated to be located at distances greater than 3 kpc, are likely situated within the Bulge.Considering the scarcity of known pulsars in this region, the determination of spin and astrometric parameters of these pulsars can be important for us to understand the pulsar population in the Bulge. Such insights are crucial for investigating the origins of Gamma-ray emissions and delineating the electron density distribution within this area. Consequently, we propose to carry out timing observations for three bright candidate pulsars, each boasting a signal-to-noise ratio exceeding 20, including a millisecond pulsar.银河系核球区域是否存在大量脉冲星，尤其是毫秒脉冲星，长期以来一直是悬而未决的谜题。本研究利用五百米口径球面射电望远镜（Five-hundred-meter Aperture Spherical Telescope, FAST）针对核球区域开展巡天观测，共发现12颗脉冲星候选体。值得注意的是，其中4颗亮脉冲星候选体的距离估计超过3千秒差距，极有可能位于核球区域内。鉴于该区域已知脉冲星极为匮乏，精确测定这些候选体的自转与天体测量参数，对我们理解核球区域的脉冲星种群分布具有重要意义。此类研究结果对于探究伽马射线辐射的起源、厘清该区域内的电子密度分布均至关重要。据此，我们提议对其中3颗信噪比超过20的亮候选脉冲星（包含1颗毫秒脉冲星）开展计时观测研究。