UBAT of UFFO/Lomonosov: The X-Ray Space Telescope to Observe Early Photons from Gamma-Ray Burstsopen access
- Authors
- Jeong, S.[Jeong, S.]; Panasyuk, M.I.[Panasyuk, M.I.]; Reglero, V.[Reglero, V.]; Connell, P.[Connell, P.]; Kim, M.B.[Kim, M.B.]; Lee, J.[Lee, J.]; Rodrigo, J.M.[Rodrigo, J.M.]; Ripa, J.[Ripa, J.]; Eyles, C.[Eyles, C.]; Lim, H.[Lim, H.]; Gaikov, G.[Gaikov, G.]; Jeong, H.[Jeong, H.]; Leonov, V.[Leonov, V.]; Chen, P.[Chen, P.]; Castro-Tirado, A.J.[Castro-Tirado, A.J.]; Nam, J.W.[Nam, J.W.]; Svertilov, S.[Svertilov, S.]; Yashin, I.[Yashin, I.]; Garipov, G.[Garipov, G.]; Huang, M.-H.A.[Huang, M.-H.A.]; Huang, J.-J.[Huang, J.-J.]; Kim, J.E.[Kim, J.E.]; Liu, T.-C.[Liu, T.-C.]; Petrov, V.[Petrov, V.]; Bogomolov, V.[Bogomolov, V.]; Budtz-Jørgensen, C.[Budtz-Jørgensen, C.]; Brandt, S.[Brandt, S.]; Park, I.H.[Park, I.H.]
- Issue Date
- Feb-2018
- Publisher
- Springer Netherlands
- Keywords
- Gamma Ray Burst; Coded mask; YSO; UFFO; Lomonosov
- Citation
- Space Science Reviews, v.214, no.1
- Indexed
- SCIE
SCOPUS
- Journal Title
- Space Science Reviews
- Volume
- 214
- Number
- 1
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/25803
- DOI
- 10.1007/s11214-017-0454-5
- ISSN
- 0038-6308
- Abstract
- 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. © 2017, The Author(s).
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