Characterisation of the main belt asteroid (223) Rosa - Observatoire de la Cote d'Azur Accéder directement au contenu
Article Dans Une Revue Astronomy and Astrophysics - A&A Année : 2021

Characterisation of the main belt asteroid (223) Rosa

C. Avdellidou
  • Fonction : Auteur correspondant
M. Pajola
A. Lucchetti
L. Agostini
  • Fonction : Auteur
M. Delbo
J. Bourdelle de Micas
  • Fonction : Auteur
M. Devogèle
G. van Belle
  • Fonction : Auteur
N. Bruot
  • Fonction : Auteur
E. Dotto
  • Fonction : Auteur
S. Ieva
  • Fonction : Auteur
G. Cremonese
  • Fonction : Auteur
P. Palumbo

Résumé

Context. The ESA JUICE space mission, on its way to study Jupiter’s environment and icy moons, will pass twice through the main asteroid belt. For this reason, the possibility to perform an asteroid flyby has been investigated.Aims. We aim to gain insight into the physical properties of the outer main belt asteroid (223) Rosa, which has been proposed as a potential JUICE flyby target.Methods. We report new visible and near-infrared spectroscopic observations at different rotation phases. Additionally, we perform a literature review of all the available physical properties, such as diameter, albedo, mass, and rotational period.Results. We find that asteroid Rosa is an X-type asteroid that shows no significant spectral variability combining the new and literature spectroscopic data. Its large size and orbital semimajor axis in the outer main belt indicate that Rosa does not belong to the Themis family, while its albedo is only marginally compatible with the family. Rosa’s estimated density is in agreement with those of other low-albedo X-type asteroids. Hence, we propose that Rosa is a planetesimal that accreted in the protoplanetary disk beyond the snow line.
Fichier principal
Vignette du fichier
aa42600-21.pdf (785.99 Ko) Télécharger le fichier
Origine : Publication financée par une institution

Dates et versions

hal-03480880 , version 1 (14-12-2021)

Identifiants

Citer

C. Avdellidou, M. Pajola, A. Lucchetti, L. Agostini, M. Delbo, et al.. Characterisation of the main belt asteroid (223) Rosa: A proposed flyby target of ESA’s JUICE mission. Astronomy and Astrophysics - A&A, 2021, 656, pp.L18. ⟨10.1051/0004-6361/202142600⟩. ⟨hal-03480880⟩
63 Consultations
33 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More