The Zelima asteroid family: Resonant configuration and rotational fission clusters

Carruba, V.; Ribeiro, João Victor

doi:10.1016/j.pss.2019.104810

Cited by 9 publications

(5 citation statements)

References 25 publications

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“…Finally, the group of ( 633) Zelima, a sub-family of the large Eos family, has recently been identified by Tsirvoulis (2019), who also noticed that the whole cluster seem to be "born" inside the z 1 secular resonance since all the members of the cluster exhibit a large amplitude libration of the σ = − 6 + Ω − Ω 6 critical argument and corresponding oscillations of proper eccentricities and inclinations. That all the members of the cluster indeed librate in this resonance was subsequently confirmed by Carruba and Ribeiro (2020), who used this unique feature of the family to infer its age using a method based on the dispersion of members in the (σ, σ) plane.…”

Section: Zonementioning

confidence: 79%

Survey of secular resonances in the asteroid belt

Knežević

2022

SERBIAN ASTRON J

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Using a recently introduced synthetic method to compute the asteroid secular frequencies (Knezevic and Milani 2019), in this paper we survey the locations of secular resonances in the 9 dynamically distinct zones of the asteroid belt. Positions of all resonances up to order four, of a significant fraction of the order six resonances, and of a several order eight ones were determined, plotted in the space of proper elements, and discussed in relation to the local dynamics and to the structure and shape of the nearby asteroid collisional families. Only the resonant combinations with fundamental frequencies of Jupiter and Saturn were considered, with a few special cases involving other planets and largest asteroids. Accuracy of the polynomial fit to determine the frequencies was found to be satisfactory for the purpose of determination of secular resonance positions. This enabled a precise identification of dynamical mechanisms affecting the computation of frequencies (close vicinity of the mean motion resonances and libration in secular resonances), and of the \cycle slips" as a primary technical drawback causing deterioration of the results. For each zone we also presented and discussed a fairly complete sample of recent works dealing with interaction of the secular resonances with asteroid families present in that zone. Finally, a few words were devoted to possibilities for future work.

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Section: Zonementioning

confidence: 79%

Survey of secular resonances in the asteroid belt

Knežević

2022

SERBIAN ASTRON J

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“…Prior to this work, the only young asteroid families known to be in secular resonant configurations were the (633) Zelima family in the z 1 secular resonance [14,21], and the (12988) Tiffanykapler in the ν 6 secular resonance [10]. The two families identified in this work bring this total up to four.…”

Section: Discussionmentioning

confidence: 89%

Deep learning classification of asteroids in g-type secular resonances

Carruba

Aljbaae

Knežević

et al. 2023

Preprint

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Linear secular resonances happen when there is a commensurability between the precession frequency of the pericenter, g, or longitude of the node, s, of an asteroid and a planet. Non-linear resonances are higherorder combinations of these frequencies. Here, we studied the three most diffusive g−type non-linear secular resonances using Artificial Neural Networks. We identified a population of more than 2100 resonant objects in the g − 2g6 + g5 and g − 3g6 + 2g5 resonances. This allows the creation of a Convolutional Neural Network model for the g − 2g6 + g5 resonance, able to predict the status of several thousands of asteroids in seconds. We identified 12 new possible dynamical groups among the resonant population, including the 5507 and 170776 families, which have both estimated ages of less than 7 My. These are the two first-ever identified young families in resonant configurations of the investigated resonances, which allows setting limits on their original ejection velocity field.

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“…Tsirvoulis (2019) analysed the population of Eos family members and found its young subfamily, namely about 2.9 Myr old Zelima cluster. This cluster was later on studied by Carruba and Ribeiro (2020) who used its resonant nature to set independent constraints on the age and initial ejection velocity field. Note also those young families connected with main-belt comets are presented in Sect.…”

Section: Young Familiesmentioning

confidence: 99%

Asteroid families: properties, recent advances, and future opportunities

Novaković

Vokrouhlický

Spoto

et al. 2022

Celest Mech Dyn Astron

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Collisions are one of the key processes shaping planetary systems. Asteroid families are outcomes of such collision still identifiable across our solar system. The families provide a unique view of catastrophic disruption phenomena and have been in the focus of planetary scientists for more than a century. Most of them are located in the main belt, a ring of asteroids between Mars and Jupiter. Here we review the basic properties of the families, discuss some recent advances, and anticipate future challenges. This review pays more attention to dynamic aspects such as family identification, age determination, and long-term evolution. The text, however, goes beyond that. Especially, we cover the details of young families that see the major advances in the last years, and we anticipate it will develop even faster in the future. We also discuss the relevance of asteroid families for water-ice content in the asteroid belt and our current knowledge on links between families and main-belt comets. query Please check the edit made in the article title.

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The Zelima asteroid family: Resonant configuration and rotational fission clusters

Cited by 9 publications

References 25 publications

Survey of secular resonances in the asteroid belt

Survey of secular resonances in the asteroid belt

Deep learning classification of asteroids in g-type secular resonances

Asteroid families: properties, recent advances, and future opportunities

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