Dynamics of dust particles released from Oort cloud comets and their contribution to radar meteors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10104318" target="_blank" >RIV/00216208:11320/11:10104318 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/0004-637X/743/1/37" target="_blank" >http://dx.doi.org/10.1088/0004-637X/743/1/37</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0004-637X/743/1/37" target="_blank" >10.1088/0004-637X/743/1/37</a>
Alternative languages
Result language
angličtina
Original language name
Dynamics of dust particles released from Oort cloud comets and their contribution to radar meteors
Original language description
The Oort Cloud Comets (OCCs), exemplified by the Great Comet of 1997 (Hale-Bopp), are occasional visitors from the heatless periphery of the solar system. Previous works hypothesized that a great majority of OCCs?t physically disrupt after one or two passages through the inner solar system, where strong thermal gradients can cause phase transitions or volatile pressure buildup. Here we study the fate of small debris particles produced by OCC disruptions to determine whether the imprints of a hypothetical population of OCC meteoroids can be found in the existing meteor radar data. We find that OCC particles with diameters D {~ 10 ?m are blown out from the solar system by radiation pressure, while those with D }~ 1 mm have a very low Earth-impact probability. The intermediate particle sizes, D ~ 100 ?m, represent a sweet spot. About 1% of these particles orbitally evolve by Poynting-Robertson drag to reach orbits with semimajor axis a ~ 1 AU. They are expected to produce meteors with rad
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA205%2F08%2F0064" target="_blank" >GA205/08/0064: The Yarkovsky and YORP effects in translational and rotational dynamics of asteroids</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal
ISSN
0004-637X
e-ISSN
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Volume of the periodical
743
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
37, 1-12
UT code for WoS article
000297408300037
EID of the result in the Scopus database
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