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The Yarkovsky effect

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Ivana Milić Žitnik

2 papers

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1
Worth Reading★ Essential
advanced

THE ROLE OF MEAN-MOTION RESONANCES IN SEMIMAJOR AXIS MOBILITY OF ASTEROIDS(pdf)

Ivana Milić Žitnik, Bojan Novaković · 2016 · The Astrophysical Journal Letters

At a Glance

This allows one to determine the distribution that represents the best data obtained for time delays <dtr> caused by the resonances on the mobility of an asteroid in the main belt.

Summary

It is reported findings about the effect of 11 two-body mean-motion resonances (MMRs) with Jupiter, on the mobility of an asteroid’s semimajor axis caused by the Yarkovsky effect. This study is accomplished using numerical integrations of test particles. The obtained results reveal that MMRs could either speed up or slow down the drift in the semimajor axis. Moreover, this allows to determine the distribution that represents the best data obtained for time delays <dtr> caused by the resonances on the mobility of an asteroid. It is found a certain functional relationship that describes dependence of the average time lead/lag.

2
Worth Reading
intermediate

Interaction between Yarkovsky force and mean-motion resonances: Some specific properties

I. Milic-Zitnik · 2016 · Serbian Astronomical Journal

At a Glance

This paper analyzed the role of mean-motion resonances in semi- major axis mobility of asteroids, and established a functional relationship that describes the dependence of the average time spent inside the resonance on the strength of this resonance and the semi-major axis drift speed.

Summary

Here was analyzed the role of mean-motion resonances in semi- major axis mobility of asteroids, and established a functional relationship that describes the dependence of the average time spent inside the resonance on the strength of this resonance and the semi-major axis drift speed. This analysis is extended in two directions: the distribution of time delays inside the resonance and found that it could be described by the modified Laplace asymmetric distribution. Second: how the time spent inside the resonance depends on orbital eccentricity, and propose a relation that allows taking this parameter into account as well.

Method:
numerical integrations, statistical methods