@Article{DeiennoGomWalMorNes:2016:GrTaMo,
               author = "Deienno, Rog{\'e}rio and Gomes, R. S. and Walsh, K. J. and 
                         Morbidelli, A. and Nesvorn{\'y}, D.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Observat{\'o}rio Nacional (ON)} and {Southwest Space Research 
                         Institute} and {Universit{\'e} C{\^o}te d'Azur} and {Southwest 
                         Space Research Institute}",
                title = "Is the Grand Tack model compatible with the orbital distribution 
                         of main belt asteroids?",
              journal = "Icarus",
                 year = "2016",
               volume = "272",
                pages = "114--124",
                month = "July",
             keywords = "Asteroids, dynamics, Origin, Solar System, Planetary dynamics, 
                         Planets, migration.",
             abstract = "The Asteroid Belt is characterized by the radial mixing of bodies 
                         with different physical properties, a very low mass compared to 
                         Minimum Mass Solar Nebula expectations and has an excited orbital 
                         distribution, with eccentricities and inclinations covering the 
                         entire range of values allowed by the constraints of dynamical 
                         stability. Models of the evolution of the Asteroid Belt show that 
                         the origin of its structure is strongly linked to the process of 
                         terrestrial planet formation. The Grand Tack model presents a 
                         possible solution to the conundrum of reconciling the small mass 
                         of Mars with the properties of the Asteroid Belt, including the 
                         mass depletion, radial mixing and orbital excitation. However, 
                         while the inclination distribution produced in the Grand Tack 
                         model is in good agreement with the one observed, the eccentricity 
                         distribution is skewed towards values larger than those found 
                         today. Here, we evaluate the evolution of the orbital properties 
                         of the Asteroid Belt from the end of the Grand Tack model (at the 
                         end of the gas nebula phase when planets emerge from the 
                         dispersing gas disk), throughout the subsequent evolution of the 
                         Solar System including an instability of the Giant Planets 
                         approximately 400 Myr later. Before the instability, the 
                         terrestrial planets were modeled on dynamically cold orbits with 
                         Jupiter and Saturn locked in a 3:2 mean motion resonance. The 
                         model continues for an additional 4.1 Gyr after the giant planet 
                         instability. Our results show that the eccentricity distribution 
                         obtained in the Grand Tack model evolves towards one very similar 
                         to that currently observed, and the semimajor axis distribution 
                         does the same. The inclination distribution remains nearly 
                         unchanged with a slight preference for depletion at low 
                         inclination; this leads to the conclusion that the inclination 
                         distribution at the end of the Grand Tack is a bit over-excited. 
                         Also, we constrain the primordial eccentricities of Jupiter and 
                         Saturn, which have a major influence on the dynamical evolution of 
                         the Asteroid Belt and its final orbital structure.",
                  doi = "10.1016/j.icarus.2016.02.043",
                  url = "http://dx.doi.org/10.1016/j.icarus.2016.02.043",
                 issn = "0019-1035",
             language = "en",
           targetfile = "Deienno_is the grand.pdf",
        urlaccessdate = "27 abr. 2024"
}