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@Article{DeiennoIzMoGoNeRa:2018:ExPrCo,
               author = "Deienno, Rog{\'e}rio and Izidoro, Andr{\'e} and Morbidelli, 
                         Alessandro and Gomes, Rodney S. and Nesvorny, David and Raymond, 
                         Sean N.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Estadual Paulista (UNESP)} and {Universit{\'e} 
                         C{\^o}te d’Azur} and {Observat{\'o}rio Nacional} and {Southwest 
                         Research Institute} and {Universite Bordeaux}",
                title = "Excitation of a primordial cold asteroid belt as an outcome of 
                         planetary instability",
              journal = "Astrophysical Journal",
                 year = "2018",
               volume = "864",
               number = "1",
                pages = "e50",
                month = "Sept",
             keywords = "minor planets, asteroids: general, planets and satellites: 
                         dynamical evolution and stability.",
             abstract = "The main asteroid belt (MB) is low in mass but dynamically 
                         excited. Here we propose a new mechanism to excite the MB during 
                         the giant planet (the {"}Nice model{"}) instability, which is 
                         expected to feature repeated close encounters between Jupiter and 
                         one or more ice giants ({"}jumping Jupiter{"} or JJ). We show 
                         that, when Jupiter temporarily reaches a high-enough level of 
                         excitation, both in eccentricity and inclination, it induces 
                         strong forced vectors of eccentricity and inclination across the 
                         MB region. Because during the JJ instability Jupiter's orbit 
                         {"}jumps{"} around, the forced vectors keep changing both in 
                         magnitude and phase throughout the whole MB region. The entire 
                         cold primordial MB is thus excited as a natural outcome of the JJ 
                         instability. The level of such an excitation, however, is 
                         typically larger than the current orbital excitation observed in 
                         the MB. We show that the subsequent evolution of the solar system 
                         is capable of reshaping the resultant overexcited MB to its 
                         present-day orbital state, and that a strong mass depletion 
                         (similar to 90%) is associated with the JJ instability phase and 
                         its subsequent evolution throughout the age of the solar system.",
                  doi = "10.3847/1538-4357/aad55d",
                  url = "http://dx.doi.org/10.3847/1538-4357/aad55d",
                 issn = "0004-637X and 1538-4357",
             language = "en",
           targetfile = "Deienno_2018_ApJ_864_50.pdf",
        urlaccessdate = "05 dez. 2020"
}


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