Secular change in the spin states of asteroids due to radiation and gravitation torques: New detections and updates of the YORP effect

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F24%3A00584411" target="_blank" >RIV/67985815:_____/24:00584411 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/24:10490561
Result on the web
<a href="https://hdl.handle.net/11104/0353172" target="_blank" >https://hdl.handle.net/11104/0353172</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202348350" target="_blank" >10.1051/0004-6361/202348350</a>

Result language
angličtina
Original language name
Secular change in the spin states of asteroids due to radiation and gravitation torques: New detections and updates of the YORP effect
Original language description
Direct observational evidence of the YORP effect is the primary goal of our work. This includes both the YORP detection for new objects and an improvement in the accuracy of previously known detections. We carried out photometric observations of five nearEarth asteroids: (1862) Apollo, (2100) Ra-Shalom, (85989) 1999 JD6, (138852) 2000 WN10, and (161989) Cacus. Then we applied the lightcurve inversion method to all available data to determine the spin state and a convex shape model for each of the five studied asteroids. The YORP effect was modeled as a linear change of the rotation frequency upsilon equivalent to d omega/dt. In the case of (2100) Ra-Shalom, the analysis required that the spinaxis precession due to the solar gravitational torque also be included. We obtained two new detections of the YORP effect: (i) upsilon = (2.9 +/- 2.0) x 10(-9) rad d(-2) for (2100) Ra-Shalom, and (ii) upsilon = (5.5 +/- 0.7) x 10(-8) rad d(-2) for (138852) 2000 WN10.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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