Memorias de investigación
Artículos en revistas:
The ion beam shepherd: A new concept for asteroid deflection
Año:2013
Áreas de investigación
  • Ingeniería aeronaútica
Datos
Descripción
A novel slow push asteroid deflection strategy has been recently proposed in which an Earth threatening asteroid can be deflected by exploiting the momentum transmitted by a collimated beam of quasi-neutral plasma impinging against the asteroid surface. The beam can be generated with state-of-the art ion engines from a hovering spacecraft with no need for physical attachment or gravitational interaction with the celestial body. The spacecraft, placed at a distance of a few asteroid diameters, would need an ion thruster pointed at the asteroid surface as well as a second propulsion system to compensate for the ion engine reaction and keep the distance between the asteroid and the shepherd satellite constant throughout the deflection phase. A comparison in terms of required spacecraft mass per total imparted deflection impulse shows that the method outperforms the gravity tractor concept by more than one order of magnitude for asteroids up to about 200 m diameter. The two methods would yield comparable performance for asteroids larger than about 2 km
Internacional
Si
JCR del ISI
Si
Título de la revista
ACTA ASTRONAUTICA
ISSN
0094-5765
Factor de impacto JCR
0,614
Información de impacto
Volumen
90
DOI
10.1016/j.actaastro.2012.10.019
Número de revista
1
Desde la página
98
Hasta la página
102
Mes
SIN MES
Ranking
0
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Fundamentos Matemáticos de la Tecnología Aeronáutica
  • Departamento: Física Aplicada a la Ingeniería Aeronáutica