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@Article{CarrubaDomHuaSanSou:2014:DyEvCh,
               author = "Carruba, V. and Domingos, R. C. and Huaman, M. E. and Santos, C. 
                         R. dos and Souami, D.",
          affiliation = "{Universidade Estadual Paulista (UNESP)} and {Instituto Nacional 
                         de Pesquisas Espaciais (INPE)} and {Universidade Estadual Paulista 
                         (UNESP)} and {Universidade Estadual Paulista (UNESP)} and 
                         {University of Namur}",
                title = "Dynamical evolution and chronology of the Hygiea asteroid family",
              journal = "Monthly Notices of the Royal Astronomical Society",
                 year = "2014",
               volume = "437",
               number = "3",
                pages = "2279--2290",
                month = "Jan.",
             keywords = "celestial mechanics, minor planets, asteroids: general, minor 
                         planets, asteroids: individual: Hygiea.",
             abstract = "The asteroid (10) Hygiea is the fourth largest asteroid of the 
                         main belt, by volume and mass, and it is the largest member of its 
                         own family. Previous works investigated the long-term effects of 
                         close encounters with (10) Hygiea of asteroids in the orbital 
                         region of the family, and analysed the taxonomical and dynamical 
                         properties of members of this family. In this paper we apply the 
                         high-quality Sloan Digital Sky Survey-Moving Object Catalog data, 
                         fourth release (SDSS-MOC4) taxonomic scheme of DeMeo \& Carry to 
                         members of the Hygiea family core and halo, we obtain an estimate 
                         of the minimum time and number of encounter necessary to obtain a 
                         3 sigma (or 99.7 per cent) compatible frequency distribution 
                         function of changes in proper a caused by close encounters with 
                         (10) Hygiea, we study the behaviour of asteroids near secular 
                         resonance configurations, in the presence and absence of the 
                         Yarkovsky force, and obtain a first estimate of the age of the 
                         family based on orbital diffusion by the Yarkovsky and 
                         Yarkovsky-O'Keefe-Radzievsky-Paddack (YORP) effects with two 
                         methods. The Hygiea family is at least 2 Byr old, with an 
                         estimated age of T = 3200(-120)(+380) Myr and a relatively large 
                         initial ejection velocity field, according to the approach of 
                         Vokrouhlicky et al. Surprisingly, we found that the family age can 
                         be shortened by similar or equal to 25 per cent if the dynamical 
                         mobility caused by close encounters with (10) Hygiea is also 
                         accounted for, which opens interesting new research lines for the 
                         dynamical evolution of families associated with massive bodies. In 
                         our taxonomical analysis of the Hygiea asteroid family, we also 
                         identified a new V-type candidate: the asteroid (177904) (2005 
                         SV5). If confirmed, this could be the fourth V-type object ever to 
                         be identified in the outer main belt.",
                  doi = "10.1093/mnras/stt2040",
                  url = "http://dx.doi.org/10.1093/mnras/stt2040",
                 issn = "0035-8711",
                label = "isi 2014-05 CarrubaDomHuaSanSou:2014:DyEvCh",
             language = "en",
           targetfile = "MNRAS-2014-Carruba-2279-90.pdf",
        urlaccessdate = "30 nov. 2020"
}


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