切伦科夫望远镜阵列天文台的瞬变源处理器研究
On the Transients Handler for the Cherenkov Telescope Array Observatory
AI总结:
本文研究切伦科夫望远镜阵列天文台的瞬变源处理器,该子系统负责过滤海量警报、优化机会目标观测调度并对外广播事件,文中介绍了其架构、最新改进与未来更新。
AI中文摘要:
切伦科夫望远镜阵列天文台(CTAO)是下一代伽马射线天文台,分别位于南半球(智利帕拉纳尔)和北半球(西班牙拉帕尔马),将最多由100台成像大气切伦科夫望远镜组成。凭借远超现有设施的灵敏度,CTAO将提供从GeV到数百TeV能段伽马射线的精细测量。CTAO的标称视场为10°,并将依赖来自IceCube(中微子)、Fermi-LAT(GeV伽马射线)、LIGO(引力波(GWs))或即将投入运行的Vera C. Rubin天文台(光学)等观测设施的外部警报来触发机会目标(ToOs)观测。瞬变源处理器(TH)是阵列控制与数据采集系统的一个子系统,将提供处理警报和安排后续观测的手段。TH负责:(i)每晚过滤数千条内部和外部警报;(ii)根据相应的观测提案处理警报,以确定最优观测计划,并尽量减少对正在进行的观测的中断;(iii)将CTAO探测到的事件广播给外部设施。在本文中,我们将讨论瞬变源处理器的架构、其最新改进以及未来的更新计划。
英文摘要:
The Cherenkov Telescope Array Observatory (CTAO) is a next-generation gamma-ray observatory in both the Southern (Paranal, Chile) and Northern Hemisphere (La Palma, Spain) and will consist of up to 100 imaging atmospheric Cherenkov telescopes. With sensitivity far exceeding current facilities, CTAO will provide detailed measurements of gamma rays from GeV up to a few 100s of TeV. CTAO has a nominal field of view of 10° and will rely on external alerts from observatories such as IceCube (neutrinos), Fermi-LAT (GeV gamma rays), LIGO (gravitational waves (GWs)) or the upcoming Vera C. Rubin Observatory (optical) to trigger observations of targets of opportunity (ToOs). The Transients Handler (TH) is a subsystem of the Array Control and Data Acquisition that will provide the means of handling alerts and schedule follow-up observations. The TH is responsible for (i) filtering of thousands of internal and external alerts per night, (ii) processing of alerts according to the corresponding observation proposal to determine the optimal observation schedule with minimum interruptions to observations and (iii) broadcasting of events detected by CTAO to external facilities. In this work, we will discuss the architecture of the Transients Handler, its latest improvements and future updates