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Atomic and molecular data for spacecraft re-entry plasmas

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The modeling of atmospheric gas, interacting with the space vehicles in re-entry conditions in planetary exploration missions, requires a large set of scattering data for all those elementary processes occurring in the system. A fundamental aspect of re-entry problems is represented by the strong non-equilibrium conditions met in the atmospheric plasma close to the surface of the thermal shield, where numerous interconnected relaxation processes determine the evolution of the gaseous system towards equilibrium conditions. A central role is played by the vibrational exchanges of energy, so that collisional processes involving vibrationally excited molecules assume a particular importance. In the present paper, theoretical calculations of complete sets of vibrationally state-resolved cross sections and rate coefficients are reviewed, focusing on the relevant classes of collisional processes: resonant and non-resonant electron-impact excitation of molecules, atom-diatom and molecule-molecule collisions as well as gas-surface interaction. In particular, collisional processes involving atomic and molecular species, relevant to Earth (N-2, O-2, NO), Mars (CO2, CO, N-2) and Jupiter (H-2, He) atmospheres are considered.

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CELIBERTO, Roberto, ARMENISE, Iole, CACCIATORE, M., CAPITELLI, Mario, ESPOSITO, Fabrizio, GAMALLO BELMONTE, Pablo, JANEV, R. k., LAGANÀ, Antonio, LAPORTA, Vincenzo, LARICCHIUTA, Annarita, LOMBARDI, Andrea, RUTIGLIANO, Maria, SAYÓS ORTEGA, Ramón, TENNYSON, Jonathan, WADEHRA, J. m.. Atomic and molecular data for spacecraft re-entry plasmas. _Plasma Sources Science & Technology_. 2016. Vol. 25, núm. 3. [consulta: 31 de gener de 2026]. ISSN: 0963-0252. [Disponible a: https://hdl.handle.net/2445/125245]

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