The Yarkovsky effect for 99942 Apophis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10314990" target="_blank" >RIV/00216208:11320/15:10314990 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985815:_____/15:00444681

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.icarus.2015.01.011" target="_blank" >http://dx.doi.org/10.1016/j.icarus.2015.01.011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.icarus.2015.01.011" target="_blank" >10.1016/j.icarus.2015.01.011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Yarkovsky effect for 99942 Apophis

Popis výsledku v původním jazyce

We use the recently determined rotation state, shape, size and thermophysical model of Apophis to predict the strength of the Yarkovsky effect in its orbit. Apophis does not rotate about the shortest principal axis of the inertia tensor, rather its rotational angular momentum vector wobbles at an average angle of similar or equal to 37 degrees from the body axis. Therefore, we pay special attention to the modeling of the Yarkovsky effect for a body in such a tumbling state, a feature that has not been described in detail so far. Our results confirm that the Yarkovsky effect is not significantly weakened by the tumbling state. The previously stated rule that the Yarkovsky effect for tumbling kilometer-size asteroids is well represented by a simple modelassuming rotation about the shortest body axis in the direction of the rotational angular momentum and with rotation period close to the precession period is confirmed. Taking into account uncertainties of the model parameters, as well a

Název v anglickém jazyce

The Yarkovsky effect for 99942 Apophis

Popis výsledku anglicky

We use the recently determined rotation state, shape, size and thermophysical model of Apophis to predict the strength of the Yarkovsky effect in its orbit. Apophis does not rotate about the shortest principal axis of the inertia tensor, rather its rotational angular momentum vector wobbles at an average angle of similar or equal to 37 degrees from the body axis. Therefore, we pay special attention to the modeling of the Yarkovsky effect for a body in such a tumbling state, a feature that has not been described in detail so far. Our results confirm that the Yarkovsky effect is not significantly weakened by the tumbling state. The previously stated rule that the Yarkovsky effect for tumbling kilometer-size asteroids is well represented by a simple modelassuming rotation about the shortest body axis in the direction of the rotational angular momentum and with rotation period close to the precession period is confirmed. Taking into account uncertainties of the model parameters, as well a

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Icarus

ISSN

0019-1035

e-ISSN

—

Svazek periodika

252

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

277-283

Kód UT WoS článku

000352118000023

EID výsledku v databázi Scopus

2-s2.0-84923241066