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arXiv 1408.6533astro-ph.IM
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LOFT宽场监测器的仪器和科学模拟

Instrumental and scientific simulations of the LOFT Wide Field Monitor

Y. Evangelista, I. Donnarumma, R. Campana, C. Schmid, M. Feroci

摘要:

大型X射线计时天文台(LOFT)是欧空局考虑作为M3任务(2022-2024年发射)的五个候选者之一。它是专门设计来利用非常快速的X射线通量和光谱可变性的诊断,直接探测物质的运动到非常接近黑洞和中子星的距离,以及超密度物质的物理状态。LOFT科学有效载荷由大面积探测器和宽视场监测器组成,前者专门用于光谱定时观测,后者的主要目标是监测X射线天空中需要由大面积探测器跟踪的瞬态事件,并测量银河X射线源的长期变化和定位伽马射线暴。在这里,我们描述的模拟进行优化的WFM设计和表征仪器响应孤立的源和拥挤的领域在附近的银河系隆起。

英文摘要:

The Large Observatory for X-ray Timing (LOFT) is one of the five candidates that were considered by ESA as an M3 mission (with launch in 2022-2024). It is specifically designed to exploit the diagnostics of very rapid X-ray flux and spectral variability that directly probe the motion of matter down to distances very close to black holes and neutron stars, as well as the physical state of ultradense matter. The LOFT scientific payload is composed of the Large Area Detector (LAD), devoted to spectral-timing observation, and the Wide Field Monitor (WFM), whose primary goal it is to monitor the X-ray sky for transient events that need to be followed up with the LAD, and to measure the long-term variability of galactic X-ray sources and localize gamma-ray bursts. Here we describe the simulations carried out to optimize the WFM design and to characterize the instrument response to both isolated sources and crowded fields in the proximity of the galactic bulge.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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