The young Adelaide family: Possible sibling to Datura?
D. Vokrouhlick\'y, B. Novakovi\'c, D. Nesvorn\'y

TL;DR
This study investigates the very young Adelaide asteroid family, analyzing its structure, age, and potential relation to the nearby Datura family, revealing a cratering event approximately 536,000 years ago with no causal link to Datura.
Contribution
First detailed analysis of the Adelaide asteroid family, including its age, structure, and dynamics, and assessment of its possible relation to the Datura family.
Findings
Adelaide family formed about 536,000 years ago.
The family is a typical cratering event with a large primary and smaller fragments.
No causal link found between Adelaide and Datura families despite similar ages.
Abstract
Very young asteroid families may record processes that accompanied their formation in the most pristine way. This makes analysis of this special class particularly interesting. We studied the very young Adelaide family in the inner part of the main belt. This cluster is extremely close to the previously known Datura family in the space of proper orbital elements and their ages overlap. As a result, we investigated the possibility of a causal relationship between the two families. We identified Adelaide family members in the up-to-date catalogue of asteroids. By computing their proper orbital elements we inferred the family structure. Backward orbital integration of selected members allowed us to determine the age of the family. The largest fragment (525) Adelaide, an S-type asteroid about km in size, is accompanied by 50 sub-kilometre fragments. This family is a typical example of…
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