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Secular families

 Grant number: 14/06762-2 Support type: Regular Research Grants Duration: June 01, 2014 - July 31, 2015 Field of knowledge: Physical Sciences and Mathematics - Astronomy - Solar System Astronomy Principal researcher: Valerio Carruba Grantee: Valerio Carruba Home Institution: Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil Assoc. researchers: Rita de Cássia Domingos ; Safwan ALJBAAE

Abstract

There are currently more than half a million asteroids in the main belt and the number is constantly increasing, because of observational surveys, accidental discoveries, etc. Among the growing population of objects, a few asteroidgroups are of particular interests because of dynamical or taxonomical reasons. Some asteroids belong to families, groups of objects that clusterin domains of proper elements or frequencies, and that are supposed to share a common origin in the collisional event that shattered the parent body.Out of the more than a hundred currently known families, a few are characterized by their interaction with strong mean-motion or secular resonances, such as for instance the case of the Tina family, which is currently in states of anti-aligned libration of the ${\nu}_6$ secular resonance (Carruba and Morbidelli 2011). Or the Agnia and Padua families, a majority of whose members are in librating states of the $z_1$ non-linear secular resonance (Vokrouhlický et al. 2006b, Carruba 2009). Because of their peculiarorbital configuration, and of the preservation of conserved quantities of their resonances, additional information can be obtained on the original ejection velocity field of these families, not obtainable for other families not in such orbital configurations. In this project we aim to investigate in detail the dynamics of families that interact with secular resonances that were not yet investigated. Among these, the ongoing work on the Euphrosyne family, unique for its interaction with the ${\nu}_6$ secular resonance, that seems to have caused a depletion in the number of large- and medium-sized objects in this family, and the families of Sylvia (interaction with the $z_1$ resonance) and Erigone ((interaction with the $z_2$ resonance) are all excellent candidates for studying in details the diffusion processes of families interacting with secular resonances. (AU)

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Scientific publications (12)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ALJBAAE, S.; CARRUBA, V.; MASIERO, J. R.; DOMINGOS, R. C.; HUAMAN, M. The Maria asteroid family. Monthly Notices of the Royal Astronomical Society, v. 471, n. 4, p. 4830-4836, NOV 2017. Web of Science Citations: 2.
CHANUT, T. G. G.; ALJBAAE, S.; PRADO, A. F. B. A.; CARRUBA, V. Dynamics in the vicinity of (101955) Bennu: solar radiation pressure effects in equatorial orbits. Monthly Notices of the Royal Astronomical Society, v. 470, n. 3, p. 2687-2701, SEP 2017. Web of Science Citations: 3.
ALJBAAE, S.; CARRUBA, V.; MASIERO, J. R.; DOMINGOS, R. C.; HUAMAN, M. The Rafita asteroid family. Monthly Notices of the Royal Astronomical Society, v. 467, n. 1, p. 1016-1023, MAY 2017. Web of Science Citations: 2.
ALJBAAE, S.; CHANUT, T. G. G.; CARRUBA, V.; SOUCHAY, J.; PRADO, A. F. B. A.; AMARANTE, A. The dynamical environment of asteroid 21 Lutetia according to different internal models. Monthly Notices of the Royal Astronomical Society, v. 464, n. 3, p. 3552-3560, JAN 2017. Web of Science Citations: 13.
CARRUBA, V. On the Astrid asteroid family. Monthly Notices of the Royal Astronomical Society, v. 461, n. 2, p. 1605-1613, SEP 11 2016. Web of Science Citations: 7.
CARRUBA, V.; NESVORNY, D.; ALJBAAE, S.; DOMINGOS, R. C.; HUAMAN, M. On the oldest asteroid families in the main belt. Monthly Notices of the Royal Astronomical Society, v. 458, n. 4, p. 3731-3738, JUN 1 2016. Web of Science Citations: 11.
CARRUBA, V.; NESVORNY, D.; MARCHI, S.; ALJBAAE, S. Footprints of a possible Ceres asteroid paleo-family. Monthly Notices of the Royal Astronomical Society, v. 458, n. 1, p. 1117-1126, MAY 1 2016. Web of Science Citations: 12.
BRASIL, P. I. O.; ROIG, F.; NESVORNY, D.; CARRUBA, V.; ALJBAAE, S.; HUAMAN, M. E. Dynamical dispersal of primordial asteroid families. ICARUS, v. 266, p. 142-151, MAR 1 2016. Web of Science Citations: 13.
CARRUBA, V.; ALJBAAE, S.; WINTER, O. C. On the Erigone family and the z(2) secular resonance. Monthly Notices of the Royal Astronomical Society, v. 455, n. 3, p. 2279-2288, JAN 21 2016. Web of Science Citations: 4.
MASIERO, JOSEPH R.; CARRUBA, V.; MAINZER, A.; BAUER, J. M.; NUGENT, C. THE EUPHROSYNE FAMILY'S CONTRIBUTION TO THE LOW ALBEDO NEAR-EARTH ASTEROIDS. ASTROPHYSICAL JOURNAL, v. 809, n. 2 AUG 20 2015. Web of Science Citations: 8.
CARRUBA, V.; NESVORNY, D.; ALJBAAE, S.; HUAMAN, M. E. Dynamical evolution of the Cybele asteroids. Monthly Notices of the Royal Astronomical Society, v. 451, n. 1, p. 244-256, JUL 21 2015. Web of Science Citations: 21.
CARRUBA, V.; ALJBAAE, S.; SOUAMI, D. PECULIAR EUPHROSYNE. ASTROPHYSICAL JOURNAL, v. 792, n. 1 SEP 1 2014. Web of Science Citations: 11.