Parkes observations for project PX600 semester 2020APRS_31

The Galactic Center (GC) is a key target for the radio component of Breakthrough Listen (BL) program. Offering the largest amount of stars in any given direction in the sky, the GC is widely cited as a location believed to harbour advanced civilizations, and it is also the most energetic region in the Milky Way. We aim to conduct BL-GC Survey with Parkes radio telescope for around 350 hours. We will cover the frequency range from 700 MHz to 4 GHz, utilizing the newly installed ultra-wideband receiver. Our team has already leveraged both standard and bespoke tools to construct a flexible software stack to search data for signals of interest. We will look for signals from extraterrestrial intelligence (ETI) by searching for both simple narrow-band signals and complex modulated signals. Along with that, as an ancillary science, we will also search for accelerated pulsars — likely orbiting a supermassive black hole at the centre of the Milky Way Galaxy. Data products produced during this program will also be publically available to engage larger pulsar community

银心（Galactic Center, GC）是“突破聆听”（Breakthrough Listen, BL）项目射电波段的核心观测目标。作为天空中任意方向上恒星总数最多的天区，银心被广泛视作可能存在高等文明的候选区域，同时也是银河系内能量活动最为剧烈的区域。本项目拟利用帕克斯射电望远镜开展BL-GC巡天观测，总观测时长约350小时。观测将覆盖700 MHz至4 GHz的频段，并将使用新安装的超宽带接收机（ultra-wideband receiver）。我们团队已整合标准工具与定制化开发工具，搭建了灵活的软件栈（software stack），用于从观测数据中筛选目标信号。本次巡天将通过搜寻两类信号以探寻地外智慧文明（extraterrestrial intelligence, ETI）的踪迹：一类是简单的窄带信号，另一类是复杂的调制信号。此外，作为本项目的附属科学研究内容，我们还将搜寻加速运动的脉冲星——这类脉冲星大概率环绕银河系中心的超大质量黑洞运行。本项目产生的全部数据产品将对外公开，以惠及更广泛的脉冲星研究社群。