Binary asteroid population. 2. Anisotropic distribution of orbit poles of small, inner main-belt binaries

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10129181" target="_blank" >RIV/00216208:11320/12:10129181 - isvavai.cz</a>
Alternative codes found
RIV/67985815:_____/12:00388364
Result on the web
<a href="http://dx.doi.org/10.1016/j.icarus.2011.11.026" target="_blank" >http://dx.doi.org/10.1016/j.icarus.2011.11.026</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.icarus.2011.11.026" target="_blank" >10.1016/j.icarus.2011.11.026</a>

Result language
angličtina
Original language name
Binary asteroid population. 2. Anisotropic distribution of orbit poles of small, inner main-belt binaries
Original language description
Our photometric observations of 18 main-belt binary systems in more than one apparition revealed a strikingly high number of 15 having positively re-observed mutual events in the return apparitions. Our simulations of the survey showed that it cannot bedue to an observational selection effect and that the data strongly suggest that poles of mutual orbits between components of binary asteroids in the primary size range 3-8 km are not distributed randomly: The null hypothesis of an isotropic distributionof the orbit poles is rejected at a confidence level greater than 99.99%. Binary orbit poles concentrate at high ecliptic latitudes, within 300 of the poles of the ecliptic. We propose that the binary orbit poles oriented preferentially up/down-right are due to either of the two processes: (i) the YORP tilt of spin axes of their parent bodies toward the asymptotic states near obliquities 0 degrees and 180 degrees (pre-formation mechanism) or (ii) the YORP tilt of spin axes of the primar
Czech name
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Czech description
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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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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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