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UBAT of UFFO/Lomonosov: The X-Ray Space Telescope to Observe Early Photons from Gamma-Ray Bursts
Space Science Reviews ( IF 9.1 ) Pub Date : 2017-12-07 , DOI: 10.1007/s11214-017-0454-5
S. Jeong , M. I. Panasyuk , V. Reglero , P. Connell , M. B. Kim , J. Lee , J. M. Rodrigo , J. Ripa , C. Eyles , H. Lim , G. Gaikov , H. Jeong , V. Leonov , P. Chen , A. J. Castro-Tirado , J. W. Nam , S. Svertilov , I. Yashin , G. Garipov , M.-H. A. Huang , J.-J. Huang , J. E. Kim , T.-C. Liu , V. Petrov , V. Bogomolov , C. Budtz-Jørgensen , S. Brandt , I. H. Park

The Ultra-Fast Flash Observatory (UFFO) Burst Alert and Trigger Telescope (UBAT) has been designed and built for the localization of transient X-ray sources such as Gamma Ray Bursts (GRBs). As one of main instruments in the UFFO payload onboard the Lomonosov satellite (hereafter UFFO/Lomonosov), the UBAT’s roles are to monitor the X-ray sky, to rapidly locate and track transient sources, and to trigger the slewing of a UV/optical telescope, namely Slewing Mirror Telescope (SMT). The SMT, a pioneering application of rapid slewing mirror technology has a line of sight parallel to the UBAT, allowing us to measure the early UV/optical GRB counterpart and study the extremely early moments of GRB evolution. To detect X-rays, the UBAT utilizes a 191.1 cm2 scintillation detector composed of Yttrium Oxyorthosilicate (YSO) crystals, Multi-Anode Photomultiplier Tubes (MAPMTs), and associated electronics. To estimate a direction vector of a GRB source in its field of view, it employs the well-known coded aperture mask technique. All functions are written for implementation on a field programmable gate array to enable fast triggering and to run the device’s imaging algorithms. The UFFO/Lomonosov satellite was launched on April 28, 2016, and is now collecting GRB observation data. In this study, we describe the UBAT’s design, fabrication, integration, and performance as a GRB X-ray trigger and localization telescope, both on the ground and in space.

中文翻译:

UFFO/Lomonosov 的 UBAT:从伽马射线暴中观测早期光子的 X 射线太空望远镜

超快闪光天文台 (UFFO) 突发警报和触发望远镜 (UBAT) 专为定位瞬态 X 射线源(例如伽马射线暴 (GRB))而设计和制造。作为罗蒙诺索夫卫星(以下简称 UFFO/罗蒙诺索夫)上 UFFO 有效载荷的主要仪器之一,UBAT 的作用是监测 X 射线天空,快速定位和跟踪瞬态源,并触发紫外/光学望远镜,即回转镜面望远镜(SMT)。SMT 是快速回转镜技术的开创性应用,其视线平行于 UBAT,使我们能够测量早期的紫外线 / 光学 GRB 对应物并研究 GRB 演化的极早期时刻。为了探测 X 射线,UBAT 使用了一个 191.1 cm2 闪烁探测器,它由氧化原硅酸钇 (YSO) 晶体组成,多阳极光电倍增管 (MAPMT) 和相关电子设备。为了估计 GRB 源在其视场中的方向矢量,它采用了众所周知的编码孔径掩模技术。所有功能都是为在现场可编程门阵列上实现而编写的,以实现快速触发并运行设备的成像算法。UFFO/罗蒙诺索夫卫星于2016年4月28日发射,目前正在收集GRB观测数据。在这项研究中,我们将 UBAT 的设计、制造、集成和性能描述为 GRB X 射线触发和定位望远镜,无论是在地面上还是在太空中。所有功能都是为在现场可编程门阵列上实现而编写的,以实现快速触发并运行设备的成像算法。UFFO/罗蒙诺索夫卫星于2016年4月28日发射,目前正在收集GRB观测数据。在这项研究中,我们将 UBAT 的设计、制造、集成和性能描述为 GRB X 射线触发和定位望远镜,无论是在地面上还是在太空中。所有功能都是为在现场可编程门阵列上实现而编写的,以实现快速触发并运行设备的成像算法。UFFO/罗蒙诺索夫卫星于2016年4月28日发射,目前正在收集GRB观测数据。在这项研究中,我们将 UBAT 的设计、制造、集成和性能描述为 GRB X 射线触发和定位望远镜,无论是在地面上还是在太空中。
更新日期:2017-12-07
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