Environmental effects on bar size

Determine whether and how the environment affects bar size, including whether environmental effects depend on galaxy stellar mass.

Background

The paper finds indications that bars may follow different evolutionary pathways depending on galaxy mass, internal structure, formation epoch, and environment. It discusses evidence from studies of dwarf, early-type, and high-mass galaxies that reports contrasting environmental trends in bar length. Because the analyzed sample lacks environmental information and existing studies disagree, the relationship between environmental density and bar size remains unresolved.

References

These results highlight that our understanding of whether and how the environment affects bar size remains limited, while also suggesting that environmental effects may depend on galaxy stellar mass.

— Stellar Mass Census of $S^4G$ Local Bars  (2610.22188 - Cavalcante-Coelho et al., 15 Oct 2026) in Section 5, Discussion