Differentiation signatures in the Flora region

Dagmara Oszkiewicz, Paweł Kankiewicz, Ireneusz Włodarczyk, Agnieszka Kryszczyńska

accepted to AA (28 09 2015)

PDF (full text)

“Most asteroid families are very homogeneous in physical properties. Some show greater diversity, however. The Flora family is the most intriguing of them. The Flora family is spread widely in the inner main belt, has a rich collisional history, and is one of the most taxonomically diverse regions in the main belt. As a result of its proximity to the asteroid (4) Vesta (the only currently known intact differentiated asteroid) and its family, migration between the two regions is possible. This dynamical path is one of the counter arguments to the hypothesis that there may be traces of a differentiated parent body other than Vesta in the inner main belt region. We here investigate the possibility that some of the V- and A- types (commonly interpreted as basaltoids and dunites – parts of the mantle and crust of differentiated parent bodies) in the Flora dynamical region are not dynamically connected to Vesta. “