Vol. 28, issue 08, article # 7

Mikhalev A.V., Podlesnyi S.V., Kostyleva N.V., Komarova E.S. Optical characteristics of the night sky over Eastern Siberia after the Chelyabinsk meteorite fall. II. Airglow. // Optika Atmosfery i Okeana. 2015. V. 28. No. 08. P. 718-724 [in Russian].
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Abstract:

We present observation results of airglow variations in emissions of OI 557.7 nm, OI 630 nm, and NaI 589.0–589.6 nm in Eastern Siberia after the Chelyabinsk meteorite fall on February 15, 2013. In the first nights, we discovered certain features of OI 557.7 nm, OI 630 nm, and NaI 589.0–589.6 nm emissions related to the changes of mean night intensities (OI 557.7 nm emission decrease, NaI 589.0–589.6 nm emission increase) and night variations in these emissions. A month after the fall of the Chelyabinsk meteorite, intervals were found with increasing intensities of OI 557.7 nm and NaI of 589.0–589.6 nm emissions as compared to preceding periods. Nature of some marked features of variations in OI 557.7 nm, OI 630 nm, and NaI 589.0–589.6 nm emissions does not exclude their possible coupling with the Chelyabinsk meteorite.

Keywords:

Chelyabinsk meteorite, night sky brightness, airglow, emissions of the upper atmosphere

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