@Article{SantosMaAlSoMePr:2021:PaMoEl,
               author = "Santos, Leonardo Barbosa Torres dos and Marchi, Lu{\'{\i}}s 
                         Ot{\'a}vio and Aljbaae, Safwan and Sousa-Silva, P. A. and 
                         Merguizo Sanchez, Diogo and Prado, Antonio Fernando Bertachini de 
                         Almeida",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Universidade Estadual Paulista 
                         (UNESP)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} 
                         and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "A particle-linkage model for elongated asteroids with 
                         three-dimensional mass distribution",
              journal = "Monthly Notices of the Royal Astronomical Society",
                 year = "2021",
               volume = "502",
                pages = "4277--4289",
             keywords = "gravitation – celestial mechanics – minor planets – asteroids: 
                         individual: 1620 Geographos, 243 Ida, 433 Eros.",
             abstract = "The goal of this paper is to develop a simplified model to 
                         describe the gravitational fields of elongated asteroids. The 
                         proposed model consists of representing an elongated asteroid 
                         using a triple-particle-linkage system distributed in the 
                         three-dimensional space and it is an extension of previous planar 
                         models. A nonlinear optimization method is used to determine the 
                         parameters of our model, minimizing the errors of all the external 
                         equilibrium points with respect to the solutions calculated with a 
                         more realistic approach, the Mascon model, which are assumed to 
                         give the real values of the system. The model considered in this 
                         paper is then applied to three real irregular asteroids: 1620 
                         Geographos, 433 Eros, and 243 Ida. The results show that the 
                         current triple-particle-linkage three-dimensional model gives 
                         better accuracy when compared to the axisymmetric 
                         triple-particle-linkage model available in the literature, and 
                         provides an advantage in terms of accuracy over the mass point 
                         model, while keeping computational time low. This model is also 
                         used to carry out simulations to characterize regions with 
                         solutions that remain bounded or that escape from around each 
                         asteroid under analysis. We investigated initial inclinations of 
                         0\◦ (direct orbits) and 180\◦ (retrograde orbits). 
                         We considered the gravitational field of the asteroid, the 
                         gravitational attraction of the Sun, and the SRP. Our results are 
                         then compared to the results obtained using the Mascon 
                         gravitational model, based on the polyhedral shape source. We 
                         found good agreement between the two models.",
                  doi = "10.1093/mnras/stab198",
                  url = "http://dx.doi.org/10.1093/mnras/stab198",
                 issn = "0035-8711 and 1365-2966",
                label = "lattes: 1153243947768055 2 SantosMaAlSoSaPr:2021:PaMoEl",
             language = "en",
           targetfile = "santos-particle.pdf",
        urlaccessdate = "04 maio 2024"
}