The Maribo CM2 meteorite fall-Survival of weak material at high entry speed

0510996 - ASÚ 2020 RIV US eng J - Článek v odborném periodiku
Borovička, Jiří - Popova, O. P. - Spurný, Pavel
The Maribo CM2 meteorite fall-Survival of weak material at high entry speed.
Meteoritics & Planetary Science. Roč. 54, č. 5 (2019), s. 1024-1041. ISSN 1086-9379. E-ISSN 1945-5100
Grant CEP: GA ČR(CZ) GA16-00761S
Grant ostatní: AV ČR(CZ) Praemium Academiae
Institucionální podpora: RVO:67985815
Klíčová slova: large meteoroids * magnetic-susceptibility * Earths atmosphere
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 2.863, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1111/maps.13259

The 26g carbonaceous (CM2) meteorite Maribo recovered in Denmark in 2009 was delivered by a bright bolide observed by several instruments across northern and central Europe. By reanalyzing the available data, we confirmed the previously reported high entry speed of (28.3 +/- 0.3) kms(-1) and trajectory with slope of 31 degrees to the horizontal. In order to understand how such a fragile material survived, we applied three different models of meteoroid atmospheric fragmentation to the detailed bolide light curve obtained by radiometers located in Czech Republic. The Maribo meteoroid was found to be quite inhomogeneous with different parts fragmenting at different dynamic pressures.
Trvalý link: http://hdl.handle.net/11104/0301347