A proposed origin for chondrule-forming shocks in the solar nebula

TL;DR

This paper suggests that shocks in the solar nebula, responsible for forming chondrules, originate from the dynamic activity in the envelopes of forming Jovian planets, as shown by 3D hydrodynamic simulations.

Contribution

It introduces a new origin for chondrule-forming shocks, linking them to Jovian planet envelope activity rather than traditional models.

Findings

Jovian planet envelopes are dynamically active and not hydrostatic.

Envelope conditions match those needed for chondrule formation.

3D simulations support the proposed shock origin.

Abstract

We propose that the nebular shocks currently favored as a model to form chondrules and other annealed silicates in the solar nebula originate in the dynamical activity present in the envelope of forming Jovian planets. In contrast to the classic `core accretion model', our 3D hydrodynamic simulations show that this envelope is not a 1D hydrostatic structure but is instead vigorously active and contains densities and temperatures that appear similar in magnitude and spatial extent to those thought to be responsible for the production of chondrules.