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Analysis of the daylight fireball of July 15, 2021, leading to a meteorite fall and find near Antonin, Poland, and a description of the recovered chondrite
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SYSNO ASEP 0566777 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Analysis of the daylight fireball of July 15, 2021, leading to a meteorite fall and find near Antonin, Poland, and a description of the recovered chondrite Author(s) Shrbený, Lukáš (ASU-R) RID, ORCID
Krzesinska, A. M. (NO)
Borovička, Jiří (ASU-R) RID, ORCID
Spurný, Pavel (ASU-R) ORCID, RID
Tyminski, Z. (PL)
Kmieciak, K. (PL)Source Title Meteoritics & Planetary Science. - : Wiley - ISSN 1086-9379
Roč. 57, č. 12 (2022), s. 2108-2126Number of pages 19 s. Publication form Online - E Language eng - English Country US - United States Keywords shock ; metal ; classification Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics OECD category Astronomy (including astrophysics,space science) R&D Projects GX19-26232X GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support ASU-R - RVO:67985815 UT WOS 000892838100001 EID SCOPUS 85143801541 DOI 10.1111/maps.13929 Annotation We present the description of an observation of a fireball recorded during the sunrise on July 15, 2021. Atmospheric trajectory, impact area, and heliocentric orbit were determined on the basis of three instrumental video records. The terminal part of the fireball was not instrumentally recorded due to clouds. Based on our computations, one meteorite was found in the predicted impact area by Polish searchers. The specimen was, soon after recovery, analyzed for the presence of short-lived radionuclides and the measurement confirms a very fresh fall, coinciding with the time of the fireball event. The recovered meteorite, Antonin, is an unbrecciated L5 chondrite with shock stage S3, weathering grade W0, and bulk density of 3.42 g cm−3. Unusual for L chondrites, it contains assemblages composed of metal and two sulfides, troilite and mackinawite. We interpret these assemblages to have been formed as products of shock metamorphism and post-shock annealing on the parent body. This suggests that the thermal and collisional history of the Antonin parent body was complex. Workplace Astronomical Institute Contact Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2023 Electronic address https://hdl.handle.net/11104/0338072
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