Parkes observations for project P944 semester 2017APRS_BPSR_03

We propose here to search for new young pulsars in the SMC. Our strategy is to target nine new, optically verified, SNR remnants from the XMM Newton survey of the SMC. Detecting a single pulsar associated with a SNR in the SMC will provide important insights about the nature of the pulsar population in the SMC and the progenitor stars that formed it. In addition finding a young pulsar in a binary with a massive star will contribute to our understanding of the evolution of high mass X-ray binaries (HMXBs) in different metallicity environments and different galaxies, as well as the formation rates of double neutron star binaries. Knowledge of the population of these sources will be crucial in the era of gravitational wave detections with Advanced Ligo and Virgo. Therefore it is essential that we make the deepest, most sensitive observations possible to either detect the young radio pulsars or place constraints on any radio emission associated with the candidate remnants. To achieve this we propose to take a nine hour integration per target, resulting in a limiting flux density of 0.016 mJy - ultimately improving the limiting flux density of previous SMC surveys by a factor of two.

我们在此提出在小麦哲伦云（Small Magellanic Cloud, SMC）中搜寻新的年轻脉冲星。我们的策略是针对XMM-牛顿卫星对SMC观测中发现的9个经光学验证的新超新星遗迹（Supernova Remnant, SNR）进行观测。在SMC中探测到一个与SNR相关联的脉冲星，将为理解SMC中脉冲星群体的性质及其前身星的形成机制提供重要见解。此外，若在大质量恒星双星系统中发现年轻脉冲星，将有助于我们理解不同金属丰度环境和不同星系中高质量X射线双星（High Mass X-ray Binary, HMXB）的演化，以及双中子星双星的形成率。在高级激光干涉引力波天文台（Advanced LIGO）和室女座干涉仪（Virgo）开展引力波探测的时代，了解这些源的群体特征至关重要。因此，我们必须进行尽可能深度且灵敏的观测，以探测年轻射电脉冲星，或对候选遗迹相关的任何射电辐射施加约束。为实现这一目标，我们建议对每个目标进行9小时的积分观测，从而获得0.016毫央斯基（mJy）的极限流量密度——这一结果将此前SMC观测的极限流量密度改善两倍（即降低至原有水平的一半）。