Pairs and groups of asteroids with nearest orbits in known families

TL;DR

This paper investigates asteroid families by identifying pairs and groups with similar orbits, revealing new young asteroid groups and members, which aids understanding their origins and collisional history.

Contribution

It introduces a method to find asteroid pairs and groups with close orbits, discovering new young groups and members within known families.

Findings

Two new young asteroid groups identified.

New members of known asteroid families discovered.

Some objects in old families are recent collision products.

Abstract

The problem of origin and age of asteroid families is studied very intensively. First of all youngest families are interesting due to possibility of the reconstruction their collisional history. But in oldest families present objects with very close orbits some of them are products of recent collisions. The search for and studying of dynamics of such pairs of orbits is a main aim of the present paper. In result, two new young groups of minor planets are detected as well as some new members of known families.