Assessment of different formation scenarios for the ring system of (10199) Chariklo

Mostrar todas las versiones(2)

Context. The discovery that the Centaur (10199) Chariklo possesses a ring system opens questions about their origin. Aims. We here asses the plausibility of different scenarios for the origin of the observed ring system. Methods. We first consider the possibility that the material of the ring or...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Melita, Mario Daniel, Duffard, R., Ortiz, J. L., Campo Bagatin, A.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Astronómicas
Kuiper belt: general
Minor planets asteroids: general
Minor planets asteroids: individual: (10199) Chariklo
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87558
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-87558
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Kuiper belt: general
Minor planets asteroids: general
Minor planets asteroids: individual: (10199) Chariklo
spellingShingle Ciencias Astronómicas
Kuiper belt: general
Minor planets asteroids: general
Minor planets asteroids: individual: (10199) Chariklo
Melita, Mario Daniel
Duffard, R.
Ortiz, J. L.
Campo Bagatin, A.
Assessment of different formation scenarios for the ring system of (10199) Chariklo
topic_facet Ciencias Astronómicas
Kuiper belt: general
Minor planets asteroids: general
Minor planets asteroids: individual: (10199) Chariklo
description Context. The discovery that the Centaur (10199) Chariklo possesses a ring system opens questions about their origin. Aims. We here asses the plausibility of different scenarios for the origin of the observed ring system. Methods. We first consider the possibility that the material of the ring originated in the disruption of a satellite that had reached a critical distance from the Centaur. We discuss the conditions for the putative satellite to approach the Centaur as a consequence of tidal interaction. A three-body encounter is also considered as a transport mechanism. In addition, we study the case in which the ring is formed by the ejecta of a cratering collision on the Centaur and we constrain the collision parameters and the size of the resulting crater of the event. Finally, we consider that the ring material originates from a catastrophic collision between a background object and a satellite located at a distance corresponding to the the current location of the ring. We compute the typical timescales for these scenarios. Results. We estimate that in order to be tidally disrupted a satellite would have had to be larger than approximately 6.5 km at the location of the rings. However the tidal interaction is rather weak for objects of the size of outer solar system bodies at the ring location, therefore we considered other more effective mechanisms by which a satellite might have approached the Centaur. Collisonal scenarios are both physically plausible for the formation, but semianalytical estimations indicate that the probability of the corresponding collisions is low under current conditions.
format Articulo
Articulo
author Melita, Mario Daniel
Duffard, R.
Ortiz, J. L.
Campo Bagatin, A.
author_facet Melita, Mario Daniel
Duffard, R.
Ortiz, J. L.
Campo Bagatin, A.
author_sort Melita, Mario Daniel
title Assessment of different formation scenarios for the ring system of (10199) Chariklo
title_short Assessment of different formation scenarios for the ring system of (10199) Chariklo
title_full Assessment of different formation scenarios for the ring system of (10199) Chariklo
title_fullStr Assessment of different formation scenarios for the ring system of (10199) Chariklo
title_full_unstemmed Assessment of different formation scenarios for the ring system of (10199) Chariklo
title_sort assessment of different formation scenarios for the ring system of (10199) chariklo
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/87558
work_keys_str_mv AT melitamariodaniel assessmentofdifferentformationscenariosfortheringsystemof10199chariklo
AT duffardr assessmentofdifferentformationscenariosfortheringsystemof10199chariklo
AT ortizjl assessmentofdifferentformationscenariosfortheringsystemof10199chariklo
AT campobagatina assessmentofdifferentformationscenariosfortheringsystemof10199chariklo
bdutipo_str Repositorios
_version_ 1764820490193469441

Ejemplares similares