Determine whether jets should be included in the standard common-envelope-evolution model

Determine whether the standard common-envelope-evolution model for cool giants and main-sequence companions should include jets as a major physical ingredient in the common-envelope-evolution process.

Background

The paper argues that jets launched by a main-sequence companion can substantially influence mass removal, accretion-disk evolution, and the final outcome of common-envelope evolution involving a cool giant. This interpretation differs from the traditional common-envelope model, which generally does not include companion-launched jets as a central ingredient.

The author explicitly notes that the proposed jet-inclusive view is not yet consensual and identifies its status as a major unresolved question in common-envelope-evolution theory. Resolving it would establish whether standard models must be revised to incorporate jets and their associated stochastic feedback on the envelope and binary evolution.