@Article{VendittiMarMisMerPra:2020:DyTeAs,
author = "Venditti, Flaviane C. F. and Marchi, Luis Ot{\'a}vio and Misra,
Arun K. and Merguizo Sanchez, Diogo and Prado, Antonio Fernando
Bertachini de Almeida",
affiliation = "{University of Central Florida} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {McGill University} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "Dynamics of tethered asteroid systems to support planetary
defense",
journal = "European Physical Journal Special Topics",
year = "2020",
volume = "229",
number = "8",
pages = "1463--1477",
month = "May",
abstract = "Every year near-Earth object (NEO) surveys discover hundreds of
new asteroids, including the potentially hazardous asteroids
(PHA). The possibility of impact with the Earth is one of the main
motivations to track and study these objects. This paper presents
a tether assisted methodology to deflect a PHA by connecting a
smaller asteroid, altering the center of mass of the system, and
consequently, moving the PHA to a safer orbit. Some of the
advantages of this method are that it does not result in
fragmentation, which could lead to another problem, and also the
flexibility to change the configuration of the system to optimize
the deflection according to the warning time. The dynamics of the
PHA-tether-asteroid system is analyzed, and the amount of orbit
change is determined for several initial conditions. Only motion
in the plane of the orbit of the PHA around the Sun is considered,
thus the PHA chosen for the simulations has low orbit inclination.
Analysis of the dynamics of the system shows that the method is
feasible for planetary defense.",
doi = "10.1140/epjst/e2020-900183-y",
url = "http://dx.doi.org/10.1140/epjst/e2020-900183-y",
issn = "1951-6355",
language = "en",
targetfile = "venditti_dynamics.pdf",
urlaccessdate = "28 mar. 2024"
}