The young Adelaide family: Possible sibling to Datura?

نویسندگان

چکیده

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 very Adelaide family inner part main belt. cluster is extremely close to previously known Datura space proper orbital elements and ages overlap. As a result, we investigated possibility causal relationship between two families. identified members up-to-date catalogue asteroids. By computing inferred structure. Backward integration selected allowed us determine age family. The largest fragment (525) Adelaide, an S-type about $10$ km size, by 50 sub-kilometre fragments. typical example cratering event. tiny extent semi-major axis minimises chances some significant mean motion resonances influence dynamics its members, though recognise affected weak, three-body resonances. Weak chaos also produced distant encounters with Mars. Simultaneous convergence longitude node for orbits six constrains $536\pm 12$ kyr (formal solution). While suspiciously overlapping family, find it unlikely events are causally linked. In all likelihood, similarity just coincidence.

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ژورنال

عنوان ژورنال: Astronomy and Astrophysics

سال: 2021

ISSN: ['0004-6361', '1432-0746']

DOI: https://doi.org/10.1051/0004-6361/202140421