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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00567443" target="_blank" >RIV/67985815:_____/22:00567443 - isvavai.cz</a>

Result on the web

<a href="https://hdl.handle.net/11104/0338700" target="_blank" >https://hdl.handle.net/11104/0338700</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/202244197" target="_blank" >10.1051/0004-6361/202244197</a>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

<a href="/en/project/GX19-26232X" target="_blank" >GX19-26232X: Compositional and orbital mapping of meteoroid sources in the Solar System</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astronomy & Astrophysics

ISSN

0004-6361

e-ISSN

1432-0746

Volume of the periodical

667

Issue of the periodical within the volume

December

Country of publishing house

FR - FRANCE

Number of pages

24

Pages from-to

A158

UT code for WoS article

000892293400007

EID of the result in the Scopus database

2-s2.0-85145192274