ELVES Measurements in the “UV Atmosphere” (Mini-EUSO) Experiment Onboard the ISS and Their Reconstruction

IF 0.6 4区 物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS
S. Sharakin, D. Barghini, M. Battisti, A. Belov, M. Bertaina, M. Bianciotto, F. Bisconti, C. Blaksley, S. Blin, G. Cambiè, F. Capel, M. Casolino, T. Ebisuzaki, J. Eser, F. Fenu, M. A. Franceschi, A. Golzio, P. Gorodetsky, F. Kajino, H. Kasuga, P. Klimov, M. Manfrin, L. Marcelli, W. Marszal, H. Miyamoto, M. Mignone, A. Murashov, T. Napolitano, H. Ohmori, A. Olinto, E. Parizot, P. Picozza, L. W. Piotrowski, Z. Plebaniak, G. Prévôt, E. Reali, M. Ricci, G. Romoli, N. Sakaki, K. Shinozaki, J. Szabelski, C. De La Taille, Y. Takizawa, M. Vrábel, L. Wiencke, M. Zotov
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引用次数: 0

Abstract

More than three dozen submillisecond events of ELVES type (“elves”), which are the result of the interaction of the front of an electromagnetic pulse from a lightning discharge and the lower layer of the ionosphere, have been identified in the data of a UV Atmosphere orbital multichannel detector (Mini-EUSO). Each event has a characteristic annular glow pattern and occupies a significant part of the detector’s field of view, and the signal in a separate channel has an asymmetric profile with a pronounced peak. The distribution of peak times contains information about both the localization of the discharge and the altitude of the glow. In this paper, we propose a Bayesian (probabilistic) model for reconstructing ELVES events, implemented using probabilistic programming methods in PyMC-5. The capabilities of the model for determining the position of the discharge are shown using the example of several events. Methods for modifying the model to restore the discharge orientation and refine the glow height are outlined.

Abstract Image

国际空间站上 "紫外线大气层"(迷你 EUSO)实验中的 ELVES 测量及其重构
摘要 在紫外大气层轨道多通道探测器(Mini-EUSO)的数据中发现了三十多个 ELVES 类型的亚毫秒事件("精灵"),它们是闪电放电电磁脉冲前端与电离层下层相互作用的结果。每个事件都有一个特征性的环形辉光模式,并占据了探测器视野的很大一部分,而且单独通道中的信号具有一个明显峰值的不对称轮廓。峰值时间的分布包含放电定位和辉光高度的信息。在本文中,我们提出了一个用于重建 ELVES 事件的贝叶斯(概率)模型,该模型是在 PyMC-5 中使用概率编程方法实现的。以几个事件为例,展示了该模型确定放电位置的能力。概述了修改模型以恢复放电方向和完善辉光高度的方法。
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来源期刊
Cosmic Research
Cosmic Research 地学天文-工程:宇航
CiteScore
1.10
自引率
33.30%
发文量
41
审稿时长
6-12 weeks
期刊介绍: Cosmic Research publishes scientific papers covering all subjects of space science and technology, including the following: ballistics, flight dynamics of the Earth’s artificial satellites and automatic interplanetary stations; problems of transatmospheric descent; design and structure of spacecraft and scientific research instrumentation; life support systems and radiation safety of manned spacecrafts; exploration of the Earth from Space; exploration of near space; exploration of the Sun, planets, secondary planets, and interplanetary medium; exploration of stars, nebulae, interstellar medium, galaxies, and quasars from spacecraft; and various astrophysical problems related to space exploration. A chronicle of scientific events and other notices concerning the main topics of the journal are also presented.
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