Electroweak/Standard Model surprises in GR-coupled hairy black holes

Identify additional unexpected black hole solutions or properties emerging from the Standard Model fields coupled to General Relativity, including non-Abelian hair and planetary-scale configurations, and classify their astrophysical relevance.

Background

Coupling GR to the Standard Model permits non-Abelian hairy black holes, and recent work suggests the existence of planetary-sized configurations in the electroweak sector. These possibilities challenge the no-hair paradigm and suggest novel astrophysical signatures.

Systematic exploration may uncover further surprises, motivating this open question.