Registration of the auroral near-UV emission by the orbital detector TUS

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Abstract

The TUS detector is a highly sensitive orbital telescope. Due to the polar orbit of the spacecraft, the detector made observations of the UV luminosity of the atmosphere above the aurora oval. Events with intensity variations characteristic of pulsating auroras have been registered. The events are located along the equatorial boundary of the auroral oval and occur during long-term geomagnetic disturbances. Comparison with data from charged particle detectors shows the presence of an increased flux of precipitating high-energy electrons (with energies above 100 keV) simultaneously with UV pulsations.

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About the authors

P. A. Klimov

Lomonosov Moscow State University

Author for correspondence.
Email: pavel.klimov@gmail.com
Russian Federation, Moscow

K. F. Sigaeva

Lomonosov Moscow State University

Email: pavel.klimov@gmail.com
Russian Federation, Moscow

V. V. Kalegaev

Lomonosov Moscow State University

Email: pavel.klimov@gmail.com
Russian Federation, Moscow

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Supplementary files

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2. Fig. 1. Map of UV luminosity intensity measurements by the TUS detector in the first week of 2017. The colour shows the intensity in relative units, red dots - pulsating polar lights

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3. Fig. 2. Example of joint measurements of energetic electron fluxes by the horizontal (DAS4hrz) and vertical (DAS4vrt) detectors on the METEOR-M2 satellite (orange and blue curves) and events with UV pulsations (vertical lines)

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