EL meteorites do date the giant planet instability

TL;DR

This study supports the hypothesis that the giant planet orbital instability was responsible for implanting the EL meteorite parent body into the asteroid belt between 60 and 100 million years after the Solar System's formation, based on dynamical and meteoritic evidence.

Contribution

It provides additional evidence that the giant planet instability is the most plausible mechanism for asteroid implantation timing, refining previous constraints with new arguments.

Findings

Giant planet instability likely caused EL meteorite parent body implantation.

Implantation occurred between 60 and 100 million years after Solar System formation.

Supports previous dynamical and meteoritic evidence for giant planet instability timing.

Abstract

In our recent work, we combined dynamical simulations, meteoritic data and thermal models as well as asteroid observations to argue that the current parent body of the EL meteorites was implanted into the asteroid belt not earlier than 60 Myr after the beginning of the Solar System and that the most likely capture mechanism was the giant planet orbital instability. In the study "The link between Athor and EL meteorites does not constrain the timing of the giant planet instability" that appeared in arXiv, Izidoro and collaborators argue that the implantation of Athor into the asteroid belt does not necessarily require that the giant planet orbital instability occurred at the implantation time. Here we provide further arguments that, in the end, the giant planet instability is still the most likely dynamical process to implant asteroid Athor into the asteroid main belt between 60 and 100 Myr after the beginning of the Solar System.