The dynamical structure of a hypothetical disc of particles around the asteroid 99942 Apophis

Oliveira, R. Machado; Valvano, G.; Winter, O. C.; Sfair, R.; Borderes-Motta, G.

doi:10.1140/epjs/s11734-023-01038-6

Eur. Phys. J. Spec. Top.

2023

DOI: 10.1140/epjs/s11734-023-01038-6

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The dynamical structure of a hypothetical disc of particles around the asteroid 99942 Apophis

R. Machado Oliveira,

G. Valvano,

O. C. Winter

et al.

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Cited by 2 publications

References 26 publications

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Apophis: may a meteor activity happen on Earth after the 2029 closest approach?

Valvano,

Sfair,

Winter

et al. 2024

Monthly Notices of the Royal Astronomical Society

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The potentially hazardous asteroid (PHA) 99942 Apophis will have a very close approach to the Earth in 2029. The encounter on its own may provide measurements of Earth’s effects on Apophis’ surface and also contribute to the improvement of some physical characteristics of the asteroid. In a previous work we assumed the existence of a hypothetical disc of particles around Apophis before the 2029 encounter, and identified the particles that would escape from the gravity domain of Apophis due to the Earths gravitational perturbation during the close encounter. In the current work we investigate the possibility of a meteor activity originating from this event. We study the orbital evolution of these particles computing the MOIDs of the particles with respect to the Earth for the following 200 years. Our results are not favorable for a meteor activity on Earth. However, a meteoroid activity on the Moon might happen during the encircling period after 88 years of the 2029 encounter.

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Apophis: may a meteor activity happen on Earth after the 2029 closest approach?

Valvano,

Sfair,

Winter

et al. 2024

Monthly Notices of the Royal Astronomical Society

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Celestial mechanics: new discoveries and challenges for space exploration

Pires,

de Melo,

Zanardi

et al. 2023

Eur. Phys. J. Spec. Top.

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The dynamical structure of a hypothetical disc of particles around the asteroid 99942 Apophis

Cited by 2 publications

References 26 publications

Apophis: may a meteor activity happen on Earth after the 2029 closest approach?

Apophis: may a meteor activity happen on Earth after the 2029 closest approach?

Celestial mechanics: new discoveries and challenges for space exploration

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