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Data on 824 fireballs observed by the digital cameras of the European Fireball Network in 2017-2018 II. Analysis of orbital and physical properties of centimeter-sized meteoroids
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SYSNO ASEP 0567443 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Data on 824 fireballs observed by the digital cameras of the European Fireball Network in 2017-2018 II. Analysis of orbital and physical properties of centimeter-sized meteoroids Tvůrce(i) Borovička, Jiří (ASU-R) RID, ORCID
Spurný, Pavel (ASU-R) ORCID, RID
Shrbený, Lukáš (ASU-R) RID, ORCIDČíslo článku A158 Zdroj.dok. Astronomy & Astrophysics. - : EDP Sciences - ISSN 0004-6361
Roč. 667, December (2022)Poč.str. 24 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova meteorites ; meteors ; meteoroids Vědní obor RIV BN - Astronomie a nebeská mechanika, astrofyzika Obor OECD Astronomy (including astrophysics,space science) CEP GX19-26232X GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora ASU-R - RVO:67985815 UT WOS 000892293400007 EID SCOPUS 85145192274 DOI 10.1051/0004-6361/202244197 Anotace In this work, data on 824 fireballs presented in an accompanying paper and catalog are used. We propose a new empirical parameter for the classification of the physical properties of meteoroids, based on the maximum dynamic pressure suffered by the meteoroid in the atmosphere. We then compare the physical and orbital properties of meteoroids. We find that aphelion distance is a better indicator of asteroidal origin than the Tisserand parameter. Meteoroids with aphelia lower than 4.9 AU are mostly asteroidal, with the exception of the Taurids and α Capricornids associated with the comets 2P/Encke and 169P/NEAT, respectively. We found another population of strong meteoroids of probably asteroidal origin on orbits with either high eccentricities or high inclinations, and aphelia up to χ 7 AU. Among the meteoroid streams, the Geminids and η Virginids are the strongest, and Leonids and α Capricornids the weakest. We found fine orbital structures within the Geminid and Perseid streams. Four minor meteoroid streams from the working list of the International Astronomical Union were confirmed. No meteoroid with perihelion distance lower than 0.07 AU was detected. Spectra are available for some of the fireballs, and they enabled us to identify several iron meteoroids and meteoroids deficient in sodium. Recognition and frequency of fireballs leading to meteorite falls is also discussed. Pracoviště Astronomický ústav Kontakt Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Rok sběru 2023 Elektronická adresa https://hdl.handle.net/11104/0338700
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