Výsledky vyhledávání - "Morelli, Andrea"

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Characterization of Singular Arcs in Spacecraft Trajectory Optimization

Autor: Morelli, Andrea Carlo, Giordano, Carmine, Bonalli, Riccardo, Topputo, Francesco

Low-thrust engines for interplanetary spacecraft transfers allow cost-effective space missions with flexible launch and arrival dates. To find fuel-optimal trajectories, an optimal control problem is to be solved. Pontryagin's Maximum Principle shows

Externí odkaz: http://arxiv.org/abs/2311.04123

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Initial Trajectory Assessment of the RAMSES Mission to (99942) Apophis

Autor: Morelli, Andrea C., Mannocchi, Alessandra, Giordano, Carmine, Ferrari, Fabio, Topputo, Francesco

(99942) Apophis is a potentially hazardous asteroid that will closely approach the Earth on April 13, 2029. Although the likelihood of an impact has been ruled out, this close encounter represents a unique opportunity for planetary science and defens

Externí odkaz: http://arxiv.org/abs/2309.00435

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VLT/MUSE observations of SDSS J1029+2623: towards a high-precision strong lensing model

Autor: Acebron, Ana, Grillo, Claudio, Bergamini, Pietro, Mercurio, Amata, Rosati, Piero, Caminha, Gabriel Bartosch, Tozzi, Paolo, Brammer, Gabriel B., Meneghetti, Massimo, Morelli, Andrea, Nonino, Mario, Vanzella, Eros

We present a strong lensing analysis of the galaxy cluster SDSS J1029+2623 at $z=0.588$, one of the few currently known lens clusters with multiple images of a background ($z=2.1992$) quasar with a measured time delay. We use archival Hubble Space Te

Externí odkaz: http://arxiv.org/abs/2111.05871

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