论文标题
使用雅典娜广阔的田野成像器探索快速的瞬态检测
Exploring rapid transient detection with the Athena Wide Field Imager
论文作者
论文摘要
X射线瞬变是宇宙天空中最神秘的对象之一。近年来，其瞬时行为的不可预测性和基本性质引起了很多研究。尽管该领域已经取得了重大进展，但对此类事件的更全面了解通常会因任何瞬态事件的快速随访而阻碍。减轻这种约束的有效方法是设计一种临近实时检测到这种瞬时现象的方法。雅典娜/广阔的田野成像仪（WFI）的$ 40'\ times 40'$视野和较大的有效区域将每天检测到大量的X射线变量或瞬态对象。在这项工作中，我们讨论了使用WFI快速对X射线瞬变的板上或地面检测的算法。我们使用模拟的ATHENA/WFI数据对算法进行了可行性测试，并表明一种相当简单的算法可以有效地检测典型的ATHENA/WFI观察中的瞬时和可变来源。
X-ray transients are among the most enigmatic objects in the cosmic sky. The unpredictability and underlying nature of their transient behavior has prompted much study in recent years. While significant progress has been made in this field, a more complete understanding of such events is often hampered by the delay in the rapid follow-up of any transient event. An efficient way to mitigate this constraint would be to devise a way for near real time detection of such transient phenomena. The Athena/Wide Field Imager (WFI), with its $40' \times 40'$ field of view and large effective area, will detect a large number of X-ray variable or transient objects daily. In this work, we discuss an algorithm for the rapid on-board or ground-based detection of X-ray transients with WFI. We present a feasibility test of the algorithm using simulated Athena/WFI data and show that a fairly simple algorithm can effectively detect transient and variable sources in typical Athena/WFI observations.
