Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Galeş, Cătălin"'
Publikováno v:
A&A 645, A63 (2021)
We study the dynamics of co-orbital dust in the inner solar system, i.e. the role of the solar radiation pressure, Poynting-Robertson effect, solar wind, and the interplanetary magnetic field on the location, width and stability of resonant motion of
Externí odkaz:
http://arxiv.org/abs/2012.04766
We study the presence of resonances in the region of space around the Earth. We consider a massless body (e.g, a dust particle or a small space debris) subject to different forces: the gravitational attraction of the geopotential, the effects of Sun
Externí odkaz:
http://arxiv.org/abs/1912.04593
Akademický článek
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Autor:
Lhotka, Christoph, Gales, Catalin
Publikováno v:
Celest Mech Dyn Astr 131: 49 (2019)
We investigate the dynamics of charged dust close to outer mean-motion resonances with planet Jupiter. The importance of the interplanetary magnetic field on the orbital evolution of dust is clearly demonstrated. New dynamical phenomena are found tha
Externí odkaz:
http://arxiv.org/abs/1911.02778
We consider a restricted four-body problem with a precise hierarchy between the bodies: two point-mass bigger bodies, a smaller one with oblate shape, and an infinitesimal body in the neighborhood of the oblate body. The three heavy bodies are assume
Externí odkaz:
http://arxiv.org/abs/1812.10852
Autor:
Celletti, Alessandra, Galeş, Cătălin
The nearby space surrounding the Earth is densely populated by artificial satellites and instruments, whose orbits are distributed within the Low-Earth-Orbit region (LEO), ranging between 90 and 2 000 $km$ of altitude. As a consequence of collisions
Externí odkaz:
http://arxiv.org/abs/1710.02519
Autor:
Celletti, Alessandra, Efthymiopoulos, Christos, Gachet, Fabien, Gales, Catalin, Pucacco, Giuseppe
The increasing threat raised by space debris led to the development of different mathematical models and approaches to investigate the dynamics of small particles orbiting around the Earth. Such models and methods strongly depend on the altitude of t
Externí odkaz:
http://arxiv.org/abs/1612.08849
We analyze the combined effect of Poynting-Robertson and solar wind drag on space debris. We derive a model within Cartesian, Gaussian and Hamiltonian frameworks. We focus on the geosynchronous resonance, although the results can be easily generalize
Externí odkaz:
http://arxiv.org/abs/1605.06965
Autor:
Celletti, Alessandra, Gales, Catalin
The dynamics of small bodies around the Earth has gained a renewed interest, since the awareness of the problems that space debris can cause in the nearby future. A relevant role in space debris is played by lunisolar secular resonances, which might
Externí odkaz:
http://arxiv.org/abs/1607.03767
Publikováno v:
SIAM J. Appl. Dyn. Syst. 15 (2016) 1352-1383
Using bifurcation theory, we study the secular resonances induced by the Sun and Moon on space debris orbits around the Earth. In particular, we concentrate on a special class of secular resonances, which depend only on the debris' orbital inclinatio
Externí odkaz:
http://arxiv.org/abs/1512.02178