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On the possibility of through passage of asteroid bodies across the Earth's atmosphere / D. E. Khrennikov, A. K. Titov, A. E. Ershov [et al.] // Mon. Not. Roy. Astron. Soc. - 2020. - Vol. 493, Is. 1. - P. 1344-1351, DOI 10.1093/mnras/staa329. - Cited References: 32 . - ISSN 0035-8711. - ISSN 1365-2966

РУБ Astronomy & Astrophysics
Рубрики:
LARGE METEOROIDS
TUNGUSKA
DISINTEGRATION
Кл.слова (ненормированные):
meteorites, meteors, meteoroids -- minor planets, asteroids: general
Аннотация: We have studied the conditions of through passage of asteroids with diameters 200, 100, and 50 m, consisting of three types of materials - iron, stone, and water ice, across the Earth's atmosphere with a minimum trajectory altitude in the range 10-15 km, The conditions of this passage with a subsequent exit into outer space with the preservation of a substantial fraction of the initial mass have been found, The results obtained support our idea explaining one of the long-standing problems of astronomy - the Tunguska phenomenon, which has not received reasonable and comprehensive interpretations to date. We argue that the Tunguska event was caused by an iron asteroid body, which passed through the Earth's atmosphere and continued to the near-solar orbit.

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Держатели документа:
Siberian Fed Univ, Svobodny Av 79-10, Krasnoyarsk 660041, Russia.
Moscow Inst Phys & Technol, Inst Sky Per 9, Dolgoprudnyi 141700, Russia.
Inst Computat Modeling SB RAS, Akad Gorodok 50-44, Krasnoyarsk 660036, Russia.
PN Lebedev Phys Inst, Leninsky Prosp 53, Moscow 119991, Russia.
Fed Res Ctr KSC SB RAS, LV Kirensky Inst Phys, Akad Gorodok 50-38, Krasnoyarsk 660036, Russia.
Siberian State Univ Sci & Technol, Krasnoyarsky Rabochy Av 31, Krasnoyarsk 660014, Russia.

Доп.точки доступа:
Khrennikov, Daniil E.; Titov, Andrei K.; Ershov, Alexander E.; Pariev, Vladimir, I; Karpov, S. V.; Карпов, Сергей Васильевич
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Effect of the surface shape of a large space body on its fragmentation in a planetary atmosphere / D. E. Khrennikov, A. K. Titov, A. E. Ershov [et al.] // Mon. Not. Roy. Astron. Soc. - 2020. - Vol. 493, Is. 1. - P. 1352-1360, DOI 10.1093/mnras/staa330. - Cited References: 38 . - ISSN 0035-8711. - ISSN 1365-2966

РУБ Astronomy & Astrophysics
Рубрики:
LARGE METEOROIDS
Кл.слова (ненормированные):
meteorites, meteors, meteoroids -- minor planets, asteroids: general
Аннотация: Employing the finite element and computational fluid dynamics methods, we have determined the conditions for the fragmentation of space bodies or preservation of their integrity when they penetrate into the Earth's atmosphere. The origin of forces contributing to the fragmentation of space iron bodies during the passage through the dense layers of the planetary atmosphere has been studied. It was shown that the irregular shape of the surface can produce transverse aerodynamic forces capable of causing deformation stress in the body exceeding the tensile strength threshold of iron.

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Держатели документа:
Siberian Fed Univ, Svobodny Av 79-10, Krasnoayrsk 660041, Russia.
Moscow Inst Phys & Technol, Inst Sky Per 9, Dolgopnany 141700, Russia.
Inst Computat Modeling SB RAS, Akademgorodok 50-44, Krasnoyarsk 660036, Russia.
Fed Res Ctr KSC SB RAS, LV Kirensky Inst Phys, Akademgorodok 50-38, Krasnoyarsk 660036, Russia.
PN Lebedev Phys Inst, Leninsky Prosp 53, Moscow 119991, Russia.
Siberian State Univ Sci & Technol, Krasnoyarsky Rabochy Av 31, Krasnoyarsk 660014, Russia.

Доп.точки доступа:
Khrennikov, D. E.; Titov, A. K.; Ershov, A. E.; Ершов, Александр Евгеньевич; Klyuchantsev, A. B.; Pariev, V. I.; Karpov, S. V.; Карпов, Сергей Васильевич
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