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Abstract <p>The imaging photometer at the Verkhnetulomskaya observatory over two seasons recorded 61&#xa0;series of UV-microbursts, nonperiodic successive short (shorter than 500 ms each) UV radiation pulses, each series lasting from tens of seconds to hours. The spatial structure of UV microbursts was studied by the example of the event on November 21, 2021. It was shown that one series can be a sequence of spots, arcs, and diffuse glow outside the field of view. The characteristic sizes of the glow areas were determined.</p>

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Spatial Structure of UV Microbursts in the Auroral Zone

  • 期刊论文

  • 发表日期：

    2025年5月1日

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  • K. D. Shchelkanov,
  • V. D. Nikolaeva,
  • P. A. Klimov

摘要

Abstract

The imaging photometer at the Verkhnetulomskaya observatory over two seasons recorded 61 series of UV-microbursts, nonperiodic successive short (shorter than 500 ms each) UV radiation pulses, each series lasting from tens of seconds to hours. The spatial structure of UV microbursts was studied by the example of the event on November 21, 2021. It was shown that one series can be a sequence of spots, arcs, and diffuse glow outside the field of view. The characteristic sizes of the glow areas were determined.