Zobrazeno 1 - 10
of 1 546
pro vyhledávání: '"Pucacco A"'
Autor:
Pucacco, Giuseppe
Publikováno v:
Celestial mechanics and Dynamical Astronomy, (2024) 136:51
We analyse the stability of the de Sitter equilibria in multi-resonant planetary systems. The de Sitter equilibrium is the dynamical state of the Laplace resonance in which all resonant arguments are librating. The sequence of equilibria exists all a
Externí odkaz:
http://arxiv.org/abs/2410.12768
We analyze, through a geometric description, the sequence of bifurcations of periodic orbits in a Hamiltonian model derived from the normalization of the secular 3D planetary three body problem. Stemming from the results in (Mastroianni & Efthymiopou
Externí odkaz:
http://arxiv.org/abs/2406.10134
Autor:
Cavallari, Irene, Pucacco, Giuseppe
Publikováno v:
Celest Mech Dyn Astron 134, 49 (2022)
We propose a methodology to study the bifurcation sequences of frozen orbits when the 2nd-order fundamental model of the satellite problem is augmented with the contribution of octupolar terms and relativistic corrections. The method is based on the
Externí odkaz:
http://arxiv.org/abs/2210.12182
Autor:
Giovannelli, L., Berrilli, F., Casolino, M., Curti, F., Del Moro, D., Calchetti, D., Cantoresi, M., D'Ambrosio, A., Francisco, G., Giobbi, P., Marcelli, L., Mazzotta, P., Mugatwala, R., Pucacco, G., Reda, R., Dhara, S. K, Tombesi, F., Blandino, D., Benigno, N., Cilia, M., Di Salvo, A., Di Tana, V., Ingiosi, F., Loddo, S., Marmonti, M., Musazzi, M., Simonetti, S., Truscelli, G.
Publikováno v:
JASR 16272, 2022
The Sun cubE onE (SEE) is a 12U CubeSat mission proposed for a phase A/B study to the Italian Space Agency that will investigate Gamma and X-ray fluxes and ultraviolet (UV) solar emission to support studies in Sun-Earth interaction and Space Weather
Externí odkaz:
http://arxiv.org/abs/2209.12251
Publikováno v:
In Physica D: Nonlinear Phenomena November 2024 468
Proper elements are quasi-invariants of a Hamiltonian system, obtained through a normalization procedure. Proper elements have been successfully used to identify families of asteroids, sharing the same dynamical properties. We show that proper elemen
Externí odkaz:
http://arxiv.org/abs/2111.13835
We present here the proposal to use the LISA interferometer for detecting the gravito-magnetic field due to the rotation of the Milky Way, including the contribution given by the dark matter halo. The galactic signal would be superposed to the gravit
Externí odkaz:
http://arxiv.org/abs/2110.05135
Publikováno v:
Astronomy and Astrophysics, 2021, 655, A94
We generalize the Laplace resonance among three satellites, S1, S2 , and S3, by considering different ratios of the mean-longitude variations. These resonances, which we call Laplace-like, are classified as first order in the cases of the 2:1&2:1, 3:
Externí odkaz:
http://arxiv.org/abs/2109.02694
Autor:
Pucacco, Giuseppe
Publikováno v:
Celestial Mechanics and Dynamical Astronomy (2021) 133, 11
We describe a comprehensive model for systems locked in the Laplace resonance. The framework is based on the simplest possible dynamical structure provided by the Keplerian problem perturbed by the resonant coupling truncated at second order in the e
Externí odkaz:
http://arxiv.org/abs/2102.07671
Publikováno v:
Journal of Nonlinear Science, 20, 2513-2544 (2020)
We consider families of Hamiltonian systems in two degrees of freedom with an equilibrium in 1:2 resonance. Under detuning, this "Fermi resonance" typically leads to normal modes losing their stability through period-doubling bifurcations. For cubic
Externí odkaz:
http://arxiv.org/abs/2005.09686